A sign the Rams have re-established themselves in Los Angeles is the irrational haterade they get from outsiders, just like the other Los Angeles teams do. The fact that the Rams get that now is a good sign, we're strengthening our place here in LA.
The thing about the stadium is that SoFi Stadium is unique in that it's not using public tax dollars to build, and the team owner, is also the developer for the overall project and thus stand to make a ton of money. There's probably some jealousy there from fans in other places whose team doesn't have a deal like that. Ram fams here in Los Angeles are getting a really great deal in all of this, with a great place to showcase our team. I've noticed people on social media saying the stadium is some sort of financial debacle as you mentioned, but honestly they're repeating a false narrative promoted by people bitter about where the Rams are now, and the same brain-dead hate LA teams get in all sports from folks who are often asleep in their timezone when things are breaking out here.