Names divide people. The Aussies call McDonalds “Mackers.”
Once you realize we’re all talking about the same thing just in different ways you can move on from misunderstanding.
Not everything homogenizes the world like a Coca-Cola. The more interconnected and borderless we are (thanks Internet!), the more we need unique identifiers to make us stand out.
The differences in language may be subtle but they’re important, otherwise all world culture is the same.