In an ideal world yeah it would be great to have quality Italian owners and management and stick to our roots, beat the oil clubs with great decision making and squad building, but the reality is something different. Now an oil money owner or some random American is like a cheat code and all fans scramble for it. It's sterile and you don't get as great a sense of achievement with that but the alternative may be that the club permanently stays second rate.
I suppose it really depends what you want out of a football club - do you want to support Juventus, do you want to support Juventus who win, or do you want to support a (any) club that wins? Lots of modern fans will just move to another club and confess their undying love, they see it as entertainment and winning football matches with style and spending lots of money are what football is about. We hark back to the good old dominant days of the 90s but we'd never be able to replicate that in modern football, we'll be one of a number of clubs. It could be City or Newcastle or Nantes or Birmingham City, makes no difference anymore, just who tickles the fancy of random big businessman or ambitious state.