You and I have very different definitions of communism then, you're describing what I'd call authoritarianism. Or a version of it, anyway.
I don't think Biden's an authoritarian, from what I can see he's a standard, run of the mill politician with a variety of influences on him, none of which self-described communists would claim to have a part in.
And you're probably right that I'm susceptible to propaganda with regards to Trump: he's a horrible, narcissistic shitbag of a person so I'm predisposed to dislike him, and I'm not immune to confirmation bias.
But he has been in legal trouble his whole life and the presidency has exposed him to a whole lot more. Staying president might be his only way of staying out of prison, and if he has to sacrifice democracy to do it, I can see him doing it.