So, Trim, if a pilot is born and raised in country X, pays their taxes, has never had a single violation, but only speaks the native language of X, they're not allowed to fly in controlled airspace?
Yea... no.
There is no simple solution to this problem folks.
UNLESS, we were to make it actually logical, that in order to fly in airspace over country X, you must speak and understand to a level 4 the native language of country X.