Wow, you could be very right. I grew up and retired to SW Missouri (Joplin), which is actually part of the cultural South, although with plenty of Midwestern and Western influences since they're so very close. At least in my time way back when such degradation of women (not at all to be confused with the "mating game" or whatever you want to call it) was just not tolerated, including by the sub-group social leaders I was around (which included me in some groups). We were a little past the era of standing up when a woman enter a room (never taught to me by my parents), but e.g. holding the door open for a women was expected (or anyone with their hands full), and getting castigated for that unthinkable.
And, yeah, the concept of a gentleman was, and I think still is, very much in play. However much feminists complain about it, it sure seems to result in women getting treated a whole lot better. And at least where I came from, there was enough Midwestern and Western pragmatism that female ability in things you might typically think as male was not such a big thing, or threatening. E.g by some distance the best shot on my high school rifle team was a girl, an old friend from kindergarten. The rest of us were boys, and her example (not to mention help) pushed us to strive harder vs. tear her down. Maybe it was in part the genre (yeah, right, harasses the school's best shot???), but I read all this high school harassment stuff of the demean the woman type and wonder if it swept the nation later, or is in part a regional phenomena.