When I join a pug group as a native English speaker I have no problems understanding that I might get a non-english group if I select all langauges when I queue up. I just send out a message through auto-translater letting them know I speak English and it is up to the party members to decided if they want to communicate with me.

This sounds like you have a strong sense of entitlement that everything should be in English just because you only know English. The world doesn't revolve around English and saying "English pls" can be offensive to non-English players. It kinda dumb to me that you can't even bother using proper English to request that people use English. If anything the players would know proper English over acronyms and internet slang.