They're essentially a Chapo Trap House fanbase whose main political discourse is antagonizing liberals. Outside of their instance they are probably being sarcastic, trolling, or flaming some generically lib take.

Naturally they're hated by libs and many a story and mythology has been spun about them as the boogeyman.

So: they're intentional assholes on the internet, and people resoundly find themselves shocked and surprised by that.