At this point I'm 99% sure that (a) SJW backlash is some form of mass hysteria where large groups of people have convinced themselves and each other that these people exist in vastly greater numbers than they actually do (I'm talking multiple orders of magnitude) and (b) many of the most vocal anti-SJW warriors (let's call them ASJWWs) are simply people who at some point in their lives had experiences where they were being a-holes (probably without realizing it), and somebody called them out on it, but rather than learning from the experience and feeling slightly guilty about being a jerk, they decided it was all a big conspiracy against courageous truth-tellers such as themselves.
All based on anecdotal evidence of course, but I'm old enough (and have lived in every corner of the US, around pretty much every demographic there is) to have accumulated an embarrassing amount of anecdotal evidence on this topic.