Originally Posted by
Omega Alpha
That would be awful. In the 616, human racists keep saying mutants don't belong there and are not like regular humans. With this, they would be right, at least partially so.
Not to mention that a) If they came to this world, there's no reason they couldn't go to another Earth or planet that doesn't have anyone living there; b) Immediately makes the X-men look like chumps, by losing to Kang completely and c) Would inevitably make Kang the X-men's biggest foe and target.
Again people: if the Avengers didn't start with the original team, why does the X-men have to?