My obvious answer would amount to, "No, thanks. I like it this way".

Difference and diversity add to the mix, while playing brings us together. It's nice to see players from different corners of the world working together towards a common goal during a behest or a quest, and it gives us a broader perspective.

Also, it does make sense amidst the cultural melting pot of Eorzea, and language-based "segregation" would take that charm away.

Onward ho to victory then - together!