Yes and some people will spend their UBI on weapons and murder people. Does that mean we try to figure out who's going to be murders so we don't give them any

Yes and some people will spend their UBI on weapons and murder people. Does that mean we try to figure out who's going to be murders so we don't give them any money? Some people have problems. That doesn't mean you scrap a good thing just because you don't like dealing with problems.