No sense is going to L.A.
L.A. is Laker town. They don't like football, and every team that goes there will end up leaving. Complete waste. Not sure why they're building that stadium.
You are right that the top of the LA pro sports pyramid is currently the Lakers (something that can always change with time), however, it doesn't mean other teams can't flourish while still sitting below the Lakers in popularity. I simply disagree with the premise that LA is not a football town. IMHO LA is sitting there waiting for the right team with the right ownership playing in the
right venue (a winning on field product being an obvious plus). NFL football is ridiculously ubiquitous in American society. It's the only sport that young and old, male and female, foreign and domestic, rich and poor, just a vast swath of society in every geographic area, at minimum, takes notice of. Because of this, because of its huge media power/reach, because the product is at face value the best sports product on the planet, every town is an NFL football town. Of course every town doesn't have a large enough pool of potential stadium goers -- ones that have to pony up the significant $$$ it takes to attend a game -- to make a stadium financially viable/successful. LA, though, is not one of them. The LA market is a gigantic fertile ground of potential stadium goers (the TV viewership side is a done deal from day one. This is all about making the stadium work). With a super modern 'more than a stadium, it's an entertainment destination!' venue, with that gigantic pool of potential stadium goers, with the ubiquity/media reach of the NFL, an LA franchise holds a lot of promise to be very successful.
My guess is that an expansion franchise would have better immediate fan base success. That's just a hunch/guess. It's one based on the thinking that a brand new team brings no negative baggage, no engrained past impressions). And it starts out as LA from its inception with an LA themed name, logo and as much LA flair to its visuals as is acceptable. All of this would become synonymous with LA because the most watched TV shows in the whole country, by a thousand miles, are NFL football games. Yet that doesn't mean a chargers or raiders or jaguars can't make an LA stadium work. But, as mentioned, these teams shouldn't even consider an LA plan unless it comes with a plan for a stadium 'destination' to call home. If one of those teams goes with a plan to use one of the existing, tired stadiums to call home? I immediately become skeptical about it being solidly successful in the near future.