A. X-men ain't rip off anything but that said the set up of current run is something that could have been adapted into a good Inhuman pitch
B. Genosha, Morlocks, Utopia, District X. What happen to all of those things? Mutants would have cultural Identity if every time a group of mutants are established or have a settlement editors/writers didn't decide to wipe out them out to fulfill tragedy porn story or false need limit population to make them a minority