In Russia, they have only 1 party left, so the party clearly doesn’t matter. In Usa, it is not an official dictator yet. In other countries with a dictatorship, I don’t know about their parties. So do you know any examples where the parties still matter?
I think China in a way is democratic as long as you have allegiance to Xi Jinping. So as long as two people have opposing policies that neither of them contradict “Xi Jinping thought”, then there is some choice I guess?