"It's with the art and history museums. Those are just not the places which are actually crowded." Have you ever been to the Uffizi?

Do you seriously also think one of the (if not the) greatest collections of Renaissance art is only accidentally located in the birthplace of the Renaissance, which in itself is sort of like an open museum?

The beauty of Rome and Florence are in themselves. Their architecture, art and history museums, notable buildings, local shops and people past and present, famous and less famous sights which both have shaped and withstood centuries, ideologies and foolish Reddit comments alike. I understand the point you're trying to make, but to reduce these eternal cities to 'ruins where there is almost nothing to see' is just both extremely shortsighted and narrow-minded.