Anyone who's lived in the Bay Area for a significant amount of time has come across the huge (one-sided) NorCal-SoCal rivalry.
From the San Francisco Bay Area perspective, Los Angeles is the ground zero of shallow consumerism - fake fake fake. People. Boobs. Personality. And the traffic?!?! We all know how horribly polluting cars are, those horrible horrible Los Angeles people - don't they know what they are doing to the earth? (This was before the Prius.) NorCal would expound on how much more aware they were, more evolved, aware, of the earth, good food, real sustainable businesses. There was no fakeness here in NorCal! We reveled in our "coldest winter I ever spent was a summer in San Francisco" foggy summers. Fuck the tourists expecting typical California (SoCal) sunny beaches. Bwahahah - go buy those sweatshirts to stay warm! Oozing with self-importance. Oozing with I am better than you.
From the SoCal side, the rivalry is .... *poof* what rivalry? Yeah, some people up there have a chip on their shoulder, but that's their issue. It's great down here. Great weather, lots of space and so much going on! Yeah, people think Hollywood's the big industry here, but there's so much more.
The NorCal SoCal rivalry was one-sided. I stopped caring about the haters up north and instead set about to make my dreams come true.
Regardless of where you live that's good advice. Stop caring about the haters and make your dreams come true.