We're finally seeing the fallout of Xavier choosing to prioritize mutants over humans. On the human side of things they'll turn more anti-mutant than ever before. This is no longer a case of people worrying about mutants potentially replacing humanity in the future. The mutants are a threat to them now. Mutants going around blowing things up or flying through buildings? That's scary on TV but it's also not something the average Marvel civilian would not worry too much about out in the suburbs. Finding out their leader can actually reach into the heads of anyone he wants and does so with world leaders as we've seen in Rise of the Powers of X? Now it's directly their problem. Considering Arrako has absolutely nothing to do with this event so far, there is potential that it is still around in this new era, so now normal civilians will think "Well why don't those mutants go live on Mars?" They'll see relocating mutants as the "humane" solution as opposed to leaving them on Earth where they are a potential threat to themselves.
Meanwhile let's consider what the X-Men are thinking. Xavier's move pissed off practically all of his students. We already have Kitty talking about how she's quitting after they're done with Orchis. She's likely not alone, which is why we'll have these separate teams. Cyclops will lead a team of mutants who'll decide the X-Men are still needed, while others like Rogue's team will temporarily give up on the X-Men team before deciding to reform under a new banner.