I think you are taking it too personal. It's just how it is. USing his as a general term for a genderless something won't set women's rights back a century, nor will "his or hers" launch us into a time of world peace. Until all of the worlds problems are solved, whether or not you should say "his" should just be left alone. I'll pencile iti n for right after world hunger and right before the sun explodes.