I think what you're describing is not just political opinions, but shared values. Especially when it comes to upholding human rights, and dismantling systems of oppression that threaten human rights.
Right wingers don't really have any shared values, except obtain and hold power by any means necessary, so right wing forums are outrageously toxic to each other even when they technically hold the same political position.
That's why we have a "loneliness epidemic", as it turns out, being a genocide-supporting chud who doesn't know empathy also robs you of genuine human intimacy.
"I left the left because the US might slaughter numerous humans daily but one white influencer getting murked is just one too for me. Nobody deserves that (unless they're Palestinian/Russian/Chinese/Hispanic/Black/LGBTQ+/poor)"
That sucks, I've met some good people in GW2, and definitely the gamer chuds too. What's terribly ironic is that the developers themselves incorporated explicitly anti-facsist messaging into the Icebrood Saga, and if chuds had a shred of media literacy they would be boycotting it for being mega-woke.