I'm not him but I mean... it's beyond easy, way way way more than fifty.
Were talking basically 90 percent of Marvel characters lineups and storylines for half a decade in the mid/early 2010's which they have slowly started walking back across all titles after they replaced, eliminated or killed off most straight white heroes because sales went in the tank even more than they already where which is like shooting a cancer patient. (pic related)
Easily 90% of movies from Disney over the last decade, easily 75%+ of ALL Hollywood productions over the last decade+. It's everywhere. Like it's so pervasive you don't even see it anymore. Like did you notice during say Rogue One or The Last Jedi or any of the recent star wars films that almost every single evil character was white and male, or when they show jump cuts during the big fight ensemble fight scenes almost all the good guys were a stunningly diverse group of PoC and females? Maybe you didn't notice, but your brain did.
95%+ of all content on Netflix.
99% of ALL advertising over the last decade+ where in every situation a white male is either shown as a clueless bumbling comic relief idiot, or an aggressive violent potential rapist usually being held in check by wise PoC males like in the recent Gillete ad controversy.
Were literally demonized non stop in ALL media, the real difficultly would be finding comics, movies, tv shows, advertising where it's absent, not where it exists. In media it's the air we breathe, the water we drink, it's everywhere.