Yes it would hepl,
Man, u act like a racist, US people just know 1 language, english, they dont even try to learn a foreign language, any language, so who's having problems?
Its ok having another server anywhere in LA, just remember, this continent is mostly people with spanish language, i guess riot's bet is spreading the brand,
its not about where they put that that server(LA), its about getting more a more players to join the community, and yes, we know that LA is a "Third world"(not being racist for that but its true as so many other countries too) and for that reason, they lag, because they are far away NA or because they have bad connections.
Riot is considering Mexico city or Argentina to put that server on, so they are deciding which country is best for that, either by infraestructure or by convenience. last weekend some riot fellows come to WCG in Mexico city, so they we have a chance to have it here :P, mwahaha.
As you can see, Spanish people can talk English or any other language, because we need it in order to understand your language, learn from that and try to learn another language and stop complaining for stupid things or just because your are lazy or dumb, or your lack of intelligence.