Meh I get the joke but I always feel like it's as overbloated as the cat int he second image. Taking a quick look at what Disney owns the biggest ones are:

-ABC
-ESPN
-Marvel Comics (and their biggest rival DC's been owned by Warner Bros. since the 1960s so if anything it's more surprising it took this long for someone to buy Marvel)
-Lucasfilm (but they had deals with them going back for a long ass time so honestly I'm more shocked they waited until 2012 to just buy the properties from Lucas)
-20th Century Fox (gonna be brutally honest here and ask "how many of you really gave a shit about Fox until Disney bought them?")
-Pixar (and it didn't happen until Eisner was outed and the relationship between the companies falling a brief falling out got fixed)

There's still a fuck ton of companies out there not under Disney's banner so they're pretty damn far from being a monopoly, plus it's not like every company Disney's worked with ends up being owned by them not long after (Square-Enix has made Kingdom Hearts games for almost two decades and Disney hasn't shown any interest in buying them, and shit even Nintendo has worked with Disney but despite both companies being known for their "making stuff for the whole family" approach no attempts have ever been made by Disney to buy Nintendo, and Nintendo's working with Universal, a company that once tried to sue them over Donkey Kong in the 80s, for theme parks and movies now).