Just listened to 21st Century Breakdown, and...

[L.C.E.C.]

This argument is a waste of my time... Blink-182 is definitely not pop...

And The Ramones were punk but Blink/GD aren't/weren't?

http://en.wikipedia.org/wiki/The_Ramones#Musical_style
http://en.wikipedia.org/wiki/Green_Day#Musical_style_and_influences

...