Or you could have a Krakoa with Xavier wiping everyone's memory of mutants. A tad extreme, but that rings right with the Krakoan business.
That said, considering how sterile and casuals-prioritizing MCU is, I have zero hype for mutants' cinematic future...
I though this was a pretty good idea too and pretty easily done
https://comicbook.com/marvel/2019/09...*****s-marvel/
Im actually not against the idea of Charles mindwiping cities and countries for years. In fact this could be a way to build a bigger story with the Illuminati and maybe something like Secret Wars as the next big arc. This can introduce the Fantastic Four as well. I know the death of Tony Stark would be a bit of an issue for the Illuminati but maybe that can be worked around by doing the flashback method from Civil War and telling Tony's origin and the reveal of Arno Stark while having Arno Stark be the one to have assembled or be assembling the Illuminati