Originally Posted by
j9ac9k
I personally don't understand this kind of reasoning. Firstly, we've seen it a million times in comics where we accept they are in a shared universe, but Professor X or the Avengers didn't intervene when Galactus showed up in Fantastic Four, The FF didn't show up to fight Magneto in whatever issue of X-Men, etc etc etc etc... Also, mutants aren't necessarily heroes. They mostly try to hide who they are or fight amongst themselves or against those who target them. It's easy to say most of them (the ones we introduce first) didn't have the powerset to even approach someone like Thanos even if they wanted to. It's easy enough to say the MCU Prof X isn't some OP telepath who can strike down a Titan in Wakanda from upstate NY, or during Endgame post-Hulksnap when the world was in emotional chaos reacting to billions of people suddenly reappearing. There's also nothing to say some mutants didn't intervene in some way during these events but on a smaller scale that didn't affect what we saw happening in the Avengers. They just weren't organized into teams and put on costumes at the time.