Lorna shrugged, "I don't think I'd be Brotherhood material. I don't see a real difference between humans and mutants and I hear following that doctrine is pretty much a requirement."
It wasn't that they weren't all 'meaningless explosions'... it was that they did that too. And Lorna didn't like the implication and possibility of joining something that acted like the KKK or Nazi Germany when it came to separating a specific sub-set of a species. She just couldn't see herself following what amounted to a modern day Hitler. Even if it was her dad.