That's because punk died after maybe '82.
Only half not serious, but plenty of pop punk, and fringe stuff is great.
punk-a-billy? The Reverend Horton Heat.
Smart punk moving into transgender, but great in any light(yes, really)? Against Me.
Pop Punk? Aforementioned Green Day, Blink is okay.
What about the Police? Outlandis d'Amour.
Pre-Rancid? Operation Ivy is maybe on equal ground with Zeppelin for me. Seminal.
I'm a fan of the CBGB stuff, but there is a ton to be mined there you may not have heard of: Handsome Dick Manitoba, Rocket from the Tomb, the Slits, tons more.
Sorry, you asked for new stuff.
the Offspring, the Black Halos, Dillinger Four, the Voodoo Glow Skulls, Lagwagon, Dropkick Murphys, NOFX, Bad Religion,
I know I'm missing some stuff, and I'm old, so these may all be a known commodity, but that's some of what I like.
Oh yeah, Me First and the Gimme Gimmies. Punk covers of everything. Very fun.