The idea is to have 2 teams moving to LA. One from the NFC and one from the AFC...
They had that 20 years ago, and didn't support either enough to keep them there.
LA's big for sure, but I don't think they really have the pro football fan base or civic ethic that says "this is our team will be with them win or lose." Too many other things to do there in the fall and too much of an attitude of either win or get lost. Long term loyalty is not really part of the mix.
LA has proven it isn’t much of an NFL town, and people really think they can manage TWO teams!?