They never did. Tomatoes are 100% American. They do not grow natively in Italy or anywhere else in Europe.
Morocco is the leading supplier to the EU, accounting for 70% of the EU's total imports, followed by Turkey.
Same ie potatoes in eastern Europe, a base in many many 'traditional' dishes. Yes if we look maybe 10 generations back, not so much for say 30 generations
So much of creativity is the result of mixing diverse elements in unique ways. And it's especially rich to rant about "purity" or cultural "ownership" regarding something that is fundamentally the result of such a fusion.
EDIT: Speaking of which, if you haven't tried pasta or pizza with a Portuguese pepper-tomato sauce, you're missing out.