Krakoa is fighting because they caused this whole situation, the world is in peril because of the actions of mutants. They can't point to those "awful" humans and lay any blame, this is all on them. And now they're going around demanding assistance and outright stealing to fix their problems. Mutants truly are their own worst enemy. I sincerely hope that Wakanda takes a more militant stance towards Krakoa going forward, basically a cold war approach. And T'challa better start developing anti-Krakoa plans and contingencies.