You know, Magic Kingdom does have themes. It's not just, "theme park plus Disney."
Frontierland is integral to those themes. If Frontierland is problematic, then so are Mainstreet U.S.A. and Liberty Square. Hell, WDW is built on land taken from natives by white men like Walt— perhaps the whole joint is now offensive.
Moreover, Latin America is a region. It doesn't have any underlying themes like the western frontier, Tommorrowland, Fantasyland, and so on. So I maintain that creatively Latinxland is NOT an interesting idea for the Magic Kingdom.
Cowboys and Indians, offensive 100%. The wild west as a concept? What the @#$% ??