I really wonder why not all non-rich people are communists, as they would likely see their own condition improved in such a society. I suppose the possible reasons could be:

1. They don't understand how the current system exploit us
2. They don't know communism or misunderstand it
3. They fear changing the current system for the “unknown”
4. They think it can't work
5. They are not interested in politics at all
6. They think that one day they will be rich too
7. They are too busy being fascist
8. Something else

I know it's probably a mix of all of these, but in what proportions exactly? What are the most common reasons?