Wolves are dangerous as fuck you moron. They absolutely did try to attack homesteads back in the day. The only reason you don't have that happening now is because A) there aren't many wolves left and B) settlers in the early United States killed wolves with such efficiency that they learned to fear us. And yes, you can kick the shit out of a single species so hard that subsequent generations have an instinctive fear of you. This is what happened with the black bear and alligator as well.