Might be a tomorrow thing. I really need to save a 'intro to DIY and anarcho punk for those who are into bands I liked at age 13 and ruin their life somewhat around it'.
That could be a half decent angle for a YouTube thing actually....I even have contacts for interviews or just personally know some people in bands that would be a part.
It sucks that people are paying attention to KMFDM for the wrong reason again (most recent school shooter wore the same shirt as one of the Columbine guys).
If you like Reagan youth you may like the unseen, the virus, sick of it all (more nyhardcore than punk but good), bad brains, uhhhhh ill think of more later probably
They're not really leftists, but I love Sick of it All, they're one of my favorite bands of all time. They should get some credit for making a song about AIDS in 1992.
I'm more into hardcore punk than the sort of straight punk you're into, but I'd also recommend Fucked Up if you don't mind a bit of a journey in hardcore. Not always revolutionary, but they do have some anti-capitalist songs. Here's their most popular song anyway: https://www.youtube.com/watch?v=iJwgcSjIjMQ
Almost their whole discography is so good, but especially the last three album run they've gone on is just a real chef's kiss moment. They're getting to be like Every Time I Die was, where they just can't stop putting out bangers over multiple decades.
Crass for your punk needs. You may also like Reallyfasthorses.
For Slavic stuff, I like some Hanba and Hlendani. I can't tell you if the politics are good on some of the bands, but when exploring Polish punk/folk-punk I discovered artists like Hiob Dylan.
Edit: also Donoma is pretty solid. That band might be even more up your alley than the stuff I listed. Give Rustbelt Tragedy a listen.
Probably a bit of a stretch based on the bands you listed, but if you want something more hardcore, check out Mindforce. I like to say they're a hardcore band that got a metal guitarist. Excalibur is one of their best
The Blood Brothers are my favorite band, maybe check out “Life the Veil, Kiss the Tank”, “Camouflage, Camouflage”, and “Devastator” for some heady anti-imperialism and anti-war rage.
They’re not for everyone, but got damn do I love them.
Xiu Xiu is another with similar themes, but a VASTLY different music style and is EVEN MORE unapproachable. Beyond hating the fuck out of George Bush (track released when he was president), he often sings of hopelessness, suicidal ideation, gender dysphoria, sexuality, self-harm, and all kinds of difficult subjects… so keep that in mind if you’re gonna check them out.