Neither. I would actively fight against Xavier's method of recruiting children to fight in a paramilitary organization, and Magneto's mutant supremacy revolutionaries. As a human being first and mutant second, I would advocate for treating mutants as humans with a medical condition and, acknowledging humanity's fears of some random kid having the power to nuke a city, call for the following policies:>Mandatory screening of the X-Gene>Registration of all humans with the X-Gene>R&D into an X-Gene "cure">Mandatory administration of the X-Gene suppressant/cure to anyone with a mutant power deemed to be dangerous (e.g reality warping, weaponizable powers like optic blasts or weather control)>Voluntary administration of the cure to anyone else who wants it>Ban on all mutant paramilitary organizations (e.g X-Men, Brotherhood of Evil Mutants)
I understand that this wouldn't happen overnight. I wouldn't want any of this to be implemented by some authoritarian figure, I'd want it to be reached via public consensus. As a mutant, I would work to create room for public debate on the matter where people like Xavier can attempt to justify to the public why it's morally permissible for human beings to have the power to destroy the world and go completely unchecked, what gives these individuals the right to wield that power even though it only came from fortuitous meddling in our ancestors' genetic code by literal aliens. I firmly believe that people like Xavier would lose this public debate, and with the loss of that moral authority would come sensible mutant policy accepted by humans and mutants alike.