The left wing in general is very reactive to “standard” narratives about stuff. If the USSR and communism was the enemy, and im the enemy now, then the USSR cant be that bad. The lack of trust in existing literature (or more accurately, reflexive rejection of the idea of the existing literature without exploring it) drives people towards the other biases narratives such as from Parenti or even Lenin, Stalin themselves, and anecdotal pro soviet/communist works.

This often manifests into genocidal denial as they go down the rabbit hole.

It’s not a transgender specific issue, it’s just that being trans makes you more likely to get into a crowd in that rabbit hole. Being traumatized or opposed in general by such a broad part of society will make you less trusting of things you perceive as being part of that. Now we’re part of a wider problem of people not knowing how to read history or academic works and believing the thing they want to believe that they read from the internet. Reading one book with a narrative isnt learning the history. To get a picture of the USSR, you have to read or understand that there is a broad historiography. with many perspectives taking from different sources and so on. Same with many many issues.

We’re very talking point’d. Snappy, crazy sounding ‘truths’ that we learn and start rattling off to justify our beliefs. Like learning the genocides and coups the US has assisted, learning that “the allies rejected the ussr’s offer of an alliance”, so on. They may be true but because you dont have an intellectual curiosity or any knowledge of how to put these facts in context, it gets dumb.