Do you live in LA, have you actually spent time here or is this a random post? People think the traffic is terrible, but they also expect to get from the east side to Santa Monica at rush hour for some unknown reason. There is a growing rail system, and the 2nd largest bus system in the US.

Given the population as it is now, I think "unwalkable, undrivable" is a bit of an overstatement or people simply wouldn't live here.