I hate being that guy, but you cannot make a statment like that and not expect some backlash. ATL have never been a punk rock band, and comparing their music stops at pop sensibility imo.
Strange combo though. Where peice the veil has the same age demographic in terms of fans, I've been to green day shows and its definitely an older, more male heavy crowd. if this was in north america I could see atl getting a pretty rough reception, with maybe a couple projectiles thrown there way. Not sure what its like in europe.