@ar-ninetysix beat me to it first, but it doesn't hurt to repeat it since some folks skip the conversation and go straight up writing their own two cents (sorry, not sorry ):
No, Disney didn't buy Dragonball. Neither did they buy Bleach. They just bought the streaming rights for Disney+
The next part will be me ranting about Disney and others (if you don't want to read all of this, that's okay) but just to make this clear:
If you like something I don't like, that's totally fine by me and I'm happy for you, but don't try to convince me otherwise. That's just a dick move.
Rant:
Let's say hypothetically, Disney did buy the rights to Dragonball (which they can't since they have to go against Toei. And that's a pissing contest they lose for sure.), it's 100% guaranteed that they mess this up. You don't believe me? Have you seen their live-action reboots? Or how they butchered Star Wars? They've made poor Mark Hamill cry during the production of "The Last Jedi".
Same with Marvel. Don't get me wrong. I did enjoy their movies till Endgame (which was okay, but some things could've been improved to make it a better movie after the huge build-up Infinity War had.), but people are exhausted from all the superhero movies and shows and want something different. Like Invincible, which is a superhero show, but it is refreshing to see something done differently. And you can clearly see that they struggle to catch the same magic the old movies had with all the mediocre writing they put in, for example, Morbius, The Immortals, the overworking of the CGI artist (which they clearly abuse), and let's not forget you have to watch all the shows and movies to understand what will go on in the next Avengers movie.
The next point I want to talk about is Netflix, but I don't have the energy to go in-depth there since you don't have to be an ultra-hardcore fan of a property to understand they clearly don't give a shit about the source material. Don't believe me? Have you seen their version of Death Note, Cowboy Bepop, and Resident Evil, to name a few? And I mean, watch all episodes and not just a trailer or two. They clearly do it for the money they can get from the fans and not that they're passionate about the source material. Sure maybe Netflix had a few hits from different IPs, but that's because there were people behind it who really cared for it. It's always important to see the red flags they put on themselves. Like with the Halo show, which wasn't on Netflix, but you get the point I'm trying to make. I do want to get excited for the live-action adaptation of One Piece, but even if the goat Oda supervised the production, I still keep my hopes down because of their bad track record.
I just wish companies would start to care again for the things they make instead of believing in the stupidity of the consumers who will buy everything just because it has the name slapped on it.