You see, the very fact that your idea is that a woman has to be as good as a man in a man's role says much.
Threatened? Perhaps so. You will become more masculine, therefore more violent, more aggressive, more likely to fight, and more likely to take jobs of men; which in turn will create strife with less jobs, women more tired when they come home, more arguments and fights, and more break up of the family. So threatened? Perhaps so. But don't try to shame my "male pride" if that is what you are thinking, cause it aint gonna happen.
You don't seem to value your own worth until you are doing what men do. And the fact that you found a lot who did not like you being there might have given you reason to pause, if you cared about men that is.