Tyler and Kendrick came out 15 years ago.
That’s like me saying NY pushes alternative rap because of A$AP Mob, Pro Era, Flatbush Zombies and that whole movement. In fact I could point to the diversity of NY hip hop in the last decade with alternative acts, Renaissance boom bap acts, melodic rappers, women rappers, drill rappers but it would be discredited because NY hip hop is constantly boxed in chasing a ghost.
Most new West Coast rap is street shyt and very local even more so than present day NY hip hop.