Yes it is. It is such a thing which you shocked. If you do your research you can find affordable places that design an affordable price, so what are you talking about get your hammer get your head out of the gutter and do your research buddy ignorant
like you, I was born and raised in the San Fernando Valley. I am more than twice your age, so I am very familiar with the place. Safe and affordable in So Cal does not exist. The affordable parts of Chatsworth, Torrance and Burbank, etc. have poor, gang- ridden areas within those mentioned neighborhoods. Yes, there are mcmansions in those areas as well, but affordable ? Really? The very cheapest price you mentioned is $850,000. The national average is more like $350,000. So to be in the boonies of Chatsworth, you need more than double what most people would consider affordable. And For $1.6m in Westchester, you need to be able to get used to the airplane noise? Why would anyone do that? Needless to say, I moved.
There is a lot more you're paying for when you move to California than what the national average is. As you know obviously the great weather, the endless things to do, the diverse cultures. It's definitely not for every individual but any person can find their place in LA which is not the case in most other parts of the world. Westchester is a great family community and there are lots of reasons people might live there. Next to the beach, easy travel from the airport if you travel a lot, airplane noise surprisingly you'll get used to and will seem like white noise after settling down there. Where did you move out to?
There is nothing affordable in Los Angeles. And a big reason for that nobody mentions is proposition 13. People pay 2k peoperty tax annually on a house that would cost them 15k if it got revalued as it does in other states. So if people paid that (plus their high insurance cost), then many would rather cash out and buy elsewhere. But if you live much cheaper in a place like Los Angeles than you would in Louisisana, then you simply won't sell. That keeps supply low and is a massive contributing factor.