You can join any political party you want in the same sense that you can work for any company you want in a Bourgeois society. That is, you can join if they want you to.

It’s good actually that capitalists, fascists and reactionaries are banned from grasping political power.

Either you do not understand what control is, or you refuse to acknowledge a class not mentioned in the writings of Friedrich Engels.

Yes obviously doctors and nurses are different classes just like principals and teachers. (Sarcasm)

My deal is that I’m interested in how a bunch of Communists convinced themselves to support undemocratic political structures. I have read some Lenin and Mao, but its not the same as engaging with people who really believe in it. We’re all people, and ones with ostensibly similar political aims, and yet we came to such different conclusions.

You skimmed Lenin and Mao have no real grasp on any of the fundamentals but think yourself a scholar hence you come to malformed conclusions that are unworkable and entirely detached from reality and struggle. If you actually studied Marxist theory and engaged with the reality and history of the struggles of the people you would likely have far less inane views and they would most likely line up with those who have engaged too. I also think you don’t really understand what democracy is as you seem to believe anything outside of Western style bourgeois democracy is not real democracy.