Why was Communism considered "un-
American"?

Communism opposes everything in America

Explanation:

This may be a huge explanation I'm about to write due to how objective I have to be to answer this question. Communism is both a economic and social idea in which Marxism and Authoritarianism are combined. A lot of Americans were taught to hate communism because America is a capitalist world and is he leading business tycoon in the world, which means that even before any communist nations even existed, America still hated communism. Communism is an ideology that is always considered to be labour comprehensive and proceeds  in the direction of labour rights, while America has no concern for labour interests. There are going to be nations I'm going to use in this example, The USSR and China (not Taiwan). These two Nations use Communism in a sort of autocratic way. Let's start off with China; China uses communism in an autocratic way that prevents you from being able to protest, and if they wanted to do some project or something they wouldn't give the slightest care if thousands of buildings and edifices were to be destroyed. Now we have the USSR; the USSR was under many autocratic regimes and one we could all agree on is Stalin's regime. Stalin in some sense wasn't really a communist, but just a straight up dictator that killed 10s of millions. There was the Ukrainian potato famine which was supposed to prove that collectivization worked, but instead it killed an estimate 20 million, we then have the great purge which killed 1.2 million, and then we have world war 2 which killed 27 million. This proved America that communism is hell and should never be trusted in America. What I'm trying to say here is that Communism takes away a lot of people's rights and killed millions in the past, and America wants to have these rights to give opportunity and freedom to everyone. I know the industrial revolution also killed millions too because of the upper class exploiting the workers, but that is a discussion for later.