There is only one style of pizza. The rest may have stolen the name for American consumption but pizza they are not
Oh, you food snobs!
All food is "stolen" from someone, eg, zhang
bang (Korean) is from China, all those noodles
in Italy (from China). Each culture adopts &
adapts as they want.
Sometimes the source is just lost to history.
Where something appeared to originate
doesn't mean that's the only way that food
can be prepared.
What matters is enjoying what's available.
So if Tex Mex or BBQ become popular in
Froggistan, they'll adapt it in their way, &
it might even be good.
Enjoyment is more important than authentic.
BTW, I heard a podcast on my last trip that
addressed French food. What it is now,
isn''t what it was not so long ago.