This is a thought experience.
In Cambodia all or nearly all is written both in Khmer and English so that the tourists are not too lost. Let’s imagine a moment that the roles are reversed, that the Khmers have conquered the world a few centuries ago and everything is dubbed in the Khmer alphabet.
How would we feel in a country that is ours, but where everything or nearly everything is also written in a language beyond understanding to us? What if the Khmer tourists understood better than us some of the signs along our roads?