The MCU’s X-Men entrance has a huge challenge ahead of them in regards to explaining where the mutants have been, but one Marvel comic storyline holds the perfect answer.
Until Disney bought Fox in 2019, Marvel’s films could not integrate classic characters like Deadpool, the Fantastic Four, and the X-Men into the MCU.
Lack of access to the X-Men characters meant Disney could not introduce concepts like mutants and their relationship with humanity.
The mutants’ absence in the MCU poses a storytelling challenge. If mutants are only now being discovered, for example, then the origins of important characters like Charles Xavier, the formation of his School For Gifted Youngsters, and the formation of antagonistic groups like Magneto’s Brotherhood of Mutants will have to be rushed through.Read more on screenrant.com