I mean, I can’t think of another type of curry that’s popular in America…

Like sure, if you’re in a huge city there might be one or two other options.

I’d never consider food to be “switchable”, let alone think another culture does it “better”.

I’m honestly at a loss how someone wouldn’t be able to understand that…

Not sure I understand why you think a Thai restaurant would be making Indian food or vice versa.

Obviously they’re not making the same dishes, but that’s like insisting no one can prefer clam chowder to tomato soup because it’s not the same dish