Punk was almost exclusively left-wing and mainly middle-class. Lydon being working class was an exception, though it is only quite recently he’s shifted right. He’s always had a fascinating outsider perspective, but I think he has lost a lot of health (himself and family) over recent years. His autobiography
No Irish, No Blacks, No Dogs is a fascinating and amusing read.
PS Punk, new-wave, two-tone etc were the founding forces behind Rock Against Racism and to a large degree the Anti-Nazi League. The divide between this and racist/NF skinheads could not be clearer or more violent.