Ah okay, so it's more the political leaning that you're interested in? Like others have mentioned, Dead Kennedys and Bad Religion, NOFX, Anti-Flag, Minor Threat/Fugazi, Operation Ivy... Rancid 2000 and a smattering if tracks from their other albums.
Lots that I'm sure I don't know. And because your original post triggered a single lyric in my head, here's the song it led to.