I don't know I think LA FC "might be" worth as much as us because of potential. If the MLS becomes the new EPL then yea.... LA, NY, Boston some of the Texas teams could be worth billions. Anyone who think that is happening in the next 10-15 years is crazy. It's also they don't have the debt we do and in the US. I think the State/City pays for stadiums so that teams do not move some place else.
US has the money, infrustuture and is just a better place to live in.
What MLS needs to do is stop buying old shit Euro players. Buy every single U20 player at this World Cup make your league quality better. Compete with any of the non top 5 leagues for the best players. Convince people it's better to go to LA FC than Torino, South Hampton, Cadiz.
If most the best North American NT players + most NT players not from Argentina/Brazil. You can have a pretty strong league.
MLS needs to kill Belgium, Portugal jumps from some of these lesser known players or lesser NTs. The Porto/Benfica to big team jump should be what they are going for. Then go after France then Italy.