In part this was because of one of the main themes within the basis of communism: that communism must spread to the rest of the world. This would leave the Americans with no-one to trade with and their economy would collapse! Also (maybe more importantly?) communism opposes/condemns capitalism and America is a capitalist nation. You see the issue.
"Let the ruling classes tremble at a Communistic revolution."
Because the ruling classes in America during the cold war trembled in fear of a communist revolution, and unfortunately were successfully in conditioning people into fearing and hating communism, while most Americans to this day do not even know the actual definitions of socialism, communism or Marxism.
Afraid is the wrong word - dislike is more accurate. In the Russian revolution, the new government confiscated all the assets of foreign companies. This hurt many western business people. The "wars of Intervention" carried on to the mid-20s, but produced no useful results and were replaced by acceptance of the position.
That Communists were trying to take over the world
False
The Soviet Union
The Soviet Union
The Soviet Union
Americans were shocked and scared in the 1950's and 1960's based on fear of communist infiltration. The government was watching anyone who they deemed communist or affiliated with any communist closely. This resulted in many people closing their mouths about political beliefs due to the fear of being questioned or watched.
because they fear that the communist will take over them
Senator Joseph McCarthy
During the Red Scare, the Americans feared the spread of communism (red was the colour of the flag of the communist Soviet Union and the communist emblem known as the red star). There were two Red Scares in U.S.A.: 1) 1919-1920: Fear of socialist revolution and political radicalism (red is a symbol of radical ideology). 2) 1947-1957: Fear of national and foreign communism influencing American society and/or infiltrating the federal government.
This is an ignorant question; the simple answer is that Muslims do not fear Americans.
Fear of communist expansion in Asia.
The spreading and surging power of Russia. In reality it is truthful to say that Russia is still very much at work in overthrowing of democratic nations.
To stop communist aggression.
Fear
Fear
Studies show that Americans' number-one fear is public speaking.
they fear the comunism