I think that only works if he is not reduced to atoms floating in the wind.
Null: If your dad atomizes me and then scatter those on the wind i might have a little trouble...
Polaris: Would you lose?
Sorry, had to do it
Okay, I'm gonna go on a little rant here so bear with me, and no, this is totally unrelated to why he got the Pepsiman nickname. As Shiny said, if you wanna know go ask the discord
Oh, i get it, yeah, that is trully the cardinal sin of any character, i always just saw him as "Scott's surfer brother" from X-men Evolution and never really cared, also being played by Magneto on his first appearence and almost dooming Scott to be a emotionless followers to old Magnus really didn't helped either.
And as for Mags, as long as you don't straight up say "I'm fucking your daughter" or something along those lines, he might even approve, Null is or will be a powerful mutant, I have no doubt that Magneto would respect that.
Untasteful jokes aside you're totally right, i can see it too, actually it would be a pretty fun way to move the story forward, having Null's loyalty to Xavier tested, maybe with Polaris
and Rogue trying to persuade him that Magneto has a point after the recent events, while the other girls try to convince Null that Xavier still has the right approach to the situation.