“It’s THEIR STUFF.”
Not so. Originally coffee came from India by way of Mocha (presently a little village on the south coast of Yemen) and was then transported by caravan to the Mediterranean. Even today many talk about mocha when they refer to coffee.
Or, vice versa. I referred to improvement in the cultivar, which they did. The original coffee bean bush may have come from Java for all that matters.
The Coffea plant is native to subtropical Africa and southern Asia in any case, so the only dispute is about who first used it the way we do ~ in Coca Cola, and that was in Atlanta wasn't it?