Just because some agitprop types try to co-opt a musical form does not mean that everyone is along for the same ride.
Blink-182 are a poppy corporate-punk band. Musically they do nothing for me (I don't like whiney singers and their songs use the same corporate-punk hooks).
The original NYC punks didn't like poltical correctness or hippies. British punk came years after NYC punk and could be more readily classified as political but blame that on the British, not the music. When Malcom McClaren (later the manager of the Sex Pistols) briefly became manager of the New York Dolls he insisted that they put the dresses away and wear red suits and play with a giant communist flag behind them. That's their manager's idea; the band didn't like it. The MC5 weren't political types, they got called out because they didn't walk the PC line.
There are conservative Republicans among punk bands' rosters. I know that Johnny Ramone and the guy from the Smithereens are public about their conservatism. Johnny convinced Joey to vote for Reagan.