Ezhavas (Thiyyas, Billavas, Illavas and Goud) are the major Hindu community of South India. They are genuine Dravidians.
What is nambir gothra
In the Kerala caste system, Ezhavas are considered to be a forward caste group distinct from Nairs and Shudras. Ezhavas traditionally were engaged in various occupations such as agriculture, trade, and business. They have made significant contributions to the socio-economic and cultural fabric of Kerala.
Sreenivasan and Vineethsreenivasan belong to Thiyya (Ezhavas of Malabar) community of Kannoore.
Thandan and Thiyya castes. are different thandan caste is the name also used as a synonym for another distinct caste group, being the Ezhavas of the same region.
Viswakarma and Ezhava are both caste communities in India and comparing their social status or hierarchy is not appropriate. Caste-based discrimination is a sensitive issue, and all communities should be treated with respect and equality.
Kavya Madhavan, Film actor Raghavan and his son Jishnu belongs to the Saliya community , traditionally engaged in weaving of North Malabar and not belongs to the dominant Thiyya/Ezhava community of the area. Please verify your list of eminent Thiyyas/Ezhavas and confirm the other names also
Rima Kallingal is a well-known Indian actress and dancer who belongs to the Ezhava caste in Kerala, India. The Ezhavas are a prominent Hindu community in Kerala with a history of social and cultural significance. Rima Kallingal has made significant contributions to the Indian film industry and is recognized for her talent and dedication to her craft.
Some South Indians are attracted to North Indians and it is the same with North Indians. I am a Syrian Malabar Nasrani and our ancestors were converted from the Brahmins who migrated from North India. If you ask me they were the purest of the Brahmins. As they did not even let other Brahmins come near them as they believed they would get polluted. By the way your question is written it sounds as if you think South Indians are Dravidians who were conquered by Aryans. You must understand the Dravidians aren't the tribal people who are really dark-skinned and have flat noses also bushy hair. Also not all South Indians are Dravidians. I would say about 21% or more South Indians have Aryan blood running through their veins. The rest of South Indians are either from the lower castes like the Pulay who look very similar to Adivasis and the Drsavidians such as the Ezhavas in Kerala.
Nadar or Shanar means Palm tree climber. They are closely related to Ezhavas of Kerala who are originally from Ceylon. In the olden days they engaged in toddy tapping and sustained their living by collecting and trading commodities derived from Palm tree. They are also very honest and humble people. In present day, they are predominantly engaged in petty trade, and mercantile activities. There are also quite number of them who work for the State and Central government of India. They were never warriors. .They consider it as a sin to commit crime by killing someone. It is also believed they were originally Buddhists. They were also rulers of their own caste based communities and had certain amount of control over the lands they lived usually Palm forests. They have made significant contributions to Tamil language and Tamilnadu. Notable individuals like Kamaraj, Sivanthi Athithan belonged to this caste and are rationalists.
The Question itself is slightly flawed because there is a presumption. The Brahmin Caste is at the apex of every society that inhabited India and continues to do so now, though in a less rigid way.They are found in all ethno-linguistic groups. Brahmins are NOT all Aryan(as in the tribe) though many of the groups are including the bulk of the Nambudiris of Kerala. Nairs or Nayars are a race of people who inhabited Kerala before the arrival of the Nambudiri Brahmins. All professions from Priests to Undertakers can be found in the Nayar Race. Illam Nairs including its sub-castes from Ambalavasis to Maarans were Brahmins of their day. Samanthas including its sub-castes from Samantha Kshatriyas, Swaroopam Nairs to Padamangalam Nairs were Kshatriyas. Vaaniyans (Bania origin Traders), Chettis, et al. were considered equal to Nairs and were Vaisyas. Sudras were the peoples who did the various services to Nair Households from Idasseris or Pandaris (Milkmen & Maids) & Chakkalas(Oil Mongers) to Barbers(Vilakkithalavans), Washermen (Veluthedams) and Asthikurrichis(Undertakers). The Nayar Caste System amalgamated into a new one that included the ritually superior Nambudiris at the helm, upon their arrival and existed till the mid 1950s. Including the Nambudiris and their off-springs with various caste women and the Sudra Nairs, it forms a system which evolved into one where birth was the only criterion. Other Keralan communities were not at all part of the caste-system and those below it- from the Ezhavas to Pariahs and Hill Tribes were considered untouchables because of their living conditions in those days and were not even permitted to come near the temples were the caste-hindus or Savarnas worshipped. These communities had their own temples and they worshipped minor-divinities such as spirits of nature and even demons and animals. The vast majority of Christians found now in Kerala, except the land-holding Syrian Christians with distinct Jewish feautures, came from this class of Untouchables. Read more in Encyclopaedia Brittanica 1936 Edition. Pillai,T.K.V., Travancore State Manual
The Question itself is slightly flawed because there is a presumption. The Brahmin Caste is at the apex of every society that inhabited India and continues to do so now, though in a less rigid way.They are found in all ethno-linguistic groups. Brahmins are NOT all Aryan(as in the tribe) though many of the groups are including the bulk of the Nambudiris of Kerala. Nairs or Nayars are a race of people who inhabited Kerala before the arrival of the Nambudiri Brahmins. All professions from Priests to Undertakers can be found in the Nayar Race. Illam Nairs including its sub-castes from Ambalavasis to Maarans were Brahmins of their day. Samanthas including its sub-castes from Samantha Kshatriyas, Swaroopam Nairs to Padamangalam Nairs were Kshatriyas. Vaaniyans (Bania origin Traders), Chettis, et al. were considered equal to Nairs and were Vaisyas. Sudras were the peoples who did the various services to Nair Households from Idasseris or Pandaris (Milkmen & Maids) & Chakkalas(Oil Mongers) to Barbers(Vilakkithalavans), Washermen (Veluthedams) and Asthikurrichis(Undertakers). The Nayar Caste System amalgamated into a new one that included the ritually superior Nambudiris at the helm, upon their arrival and existed till the mid 1950s. Including the Nambudiris and their off-springs with various caste women and the Sudra Nairs, it forms a system which evolved into one where birth was the only criterion. Other Keralan communities were not at all part of the caste-system and those below it- from the Ezhavas to Pariahs and Hill Tribes were considered untouchables because of their living conditions in those days and were not even permitted to come near the temples were the caste-hindus or Savarnas worshipped. These communities had their own temples and they worshipped minor-divinities such as spirits of nature and even demons and animals. The vast majority of Christians found now in Kerala, except the land-holding Syrian Christians with distinct Jewish feautures, came from this class of Untouchables. Read more in Encyclopaedia Brittanica 1936 Edition. Pillai,T.K.V., Travancore State Manual