Originally Posted by
Kisinith
Rictor chose to stay away because he was afraid of what his powers would do. Beak and family chose to stay away because of family. Pete Wisdom chose to stay away because his loyalty was to the UK (By the way he meets the exact criteria you set). It doesn't matter why they stayed away, the simple fact that they did proves your assertion wrong. The only mutant not allowed to leave is Sabertooth, and F' him, he deserves it. The vast majority of mutants chose to go to Krakoa because Marvel has been telling us how overwhelmingly horrible the MU is towards mutants pretty much from the very beginning of Chris Claremont's tenure as writer.
There is nothing problematic in universe about the overwhelmingly vast majority of mutants wanting to go someplace where they aren't afraid of 40 ft. murderbots, inhuman death clouds, religious fanatics, government slavery, genetically engineered predators, government enforced medical procedures, having to live in sewers, political oppression, genetic persecution and so on and son on. Conversely, none of Krakoa's warts have come to the surface, so to the MU mutants it must look like paradise. Even then, they have shown us mutants who chose not to go or who aren't certain about Krakoa. There probably are other mutants who stayed away but there is no reason they need to be shown because the plot isn't about them, right now the plot is about building Krakoa not tearing it down.