The Mancs have won things in the last seven years, Milan have done nothing since they sold Ibrahimovic,Thiago Silva and won the league in 2012. They haven't made the CL in that time and they've progressively gotten worse. Had they even been remotely competitive, I'd hold them to a much higher regard than I do. It's like saying that Nottingham Forest are bigger right now than Chelsea as they have 2 European cups.
I'm not saying 'right now' to anything at all. I'm just talking overall. It's a good discussion. For example, you have Juve with 30 plus League Titles, but only 3 European Cups/CLs, whereas Milan has 18 League Titles but 7 European Cups/CLs. Forget 'right now'. Who is the bigger club overall? I don't think it's as straight forward as you say in terms of dismissing Milan, even though they have been failures recently.
You do point the difference between Milan and Man United, that's well and good and then you go on to compare Milan and Nottingham Forest, how? Milan's recent League title was in this decade, Nottingham Forest have won 1 League overall and haven't been in the top flight for a couple of decades?
Man United have won things in the last 7 years, yes, but nothing major as in a League or CL, 1 League Cup, 1 FA Cup, 1 Europa League right? Yes, that's more than what Milan did, but frankly, before we won the CL last season, we had won 1 League Cup in 8 years, so would you have had us as a smaller club than United and Juve at that time? I wouldn't have, overall, even if we had blips at that time. Were Leicester a bigger club than Liverpool before we won CL last season, because they won the League/a major trophy more recently than us?