In what world is Orange County a step child, holy crap you speak of Orange County like it's Newark or something. You have a huge population of mostly affluent people in one of the most desirable parts of the country. People in Orange County aren't the ones obsessed with talking about people from LA, it's the other way around, people from LA seem to look down on people from Orange County and resort to name-calling or bogus comments.
Getting back to sports, the Lakers have been one of the most pathetic franchises in sports the last 5 years, it doesn't matter, no one in LA is abandoning them for the Clippers, and no one would abandon the Dodgers if the Angels up and moved to LA, their attendance would actually suffer because their core fanbase wouldn't sit on the 5 or 405 for 2 hours getting to the games.
Had the Clippers moved to Anaheim they would have had a population of 3 million fans to draw from, and been able to grow a significant fanbase out of the shadow of the vastly more popular Lakers. They wouldn't play in the Lakers building and the Lakers city. They could have attracted free agents because athletes want to live in Orange County and don't want to be the little brother.
The Angels and Ducks do not live in the shadow of the Dodgers and Kings, the Clippers firmly live in the shadow of the Lakers, and it will always be that way as long as they stay in LA.