I totally get your underlying point, but sometimes it comes down to pragmatism.
If one’s goal is for the world to work as efficiently and with as little friction as possible, then things like a single common language make a lot of sense.
For example, in most spheres of international business English is the common language. It’s not a value judgement about the importance of English or the inferiority of other languages – it’s just pragmatism as English is the commonest shared language that most people understand, whether as a first or second+ language.
I think English speakers have this innate expectation for the world adapt to them.
They Speak their native language and expect signage, menus, conversations, to be in English.
But if a person attempts to only speaks their own non-english native language, that's being rude.