In other words as long as they don't force people in it or force people to stay in it again their will then you accept it?
Communism is not perfectly acceptable to ME. If other people wish to freely associate and live a communal life, without forcing me to participate, either personally or monetarily, then that is their choice and it does not affect me. But, of course, Communism in practice is the antithesis of free association, isn't it?
Now, on to Nazism. How does your logic exercise hold up in this instance?