Really that list only superficially scratches the surface of "punk". In its roughly 30 year history punk has become probably the most diverse and complicated sub-genre of rock(if not music period). From those earliest examples of proto punk have spread some drastically divergent branches, creating sub-genres within sub-genres within sub-genres. But there almost always remains a certain continuity in style, influence, history, and fan base allowing all these bands to own some rights to the 'punk' label.
I simply can't take seriously the musical opinions of anybody that outright dismisses punk as a whole. That sort of attitude can only come out of pure ignorance of a huge chunk of rock music of the past few decades.