Again it is not the point. English is not my native language and I have no problem in using it... but if I am replying to someone I know their own language and would like to use that (with just them) I shouldn't be forced not to do that.
yeah, I don't speak any other languages fluently but I also find that sentiment disgusting and reductive. use whatever language you want, wherever you want.
Niin sinä luulet. Liegst falsch, mon cher.