It seems to be a common viewpoint that it's "obviously" naive to think that the same political institutions could work for everyone around the world.

But lots of day-to-day-life things (city structures, school systems, increasingly even food...) seem to globalize quickly just fine.

Why the difference?

Imho the two have very different rooting. First requires an interoperability with well established, western (and for many foreign) _frameworks_, where the later doesn't (it developed organically). Restricting what's allowed to eat and restricting what schools teach, these carry different weights in such frameworks.