Regarding wage disparity, most of it lies in the upper end. What averages as a 23-33% disparity is in fact more like 10% for middle incomes, at least on an hourly basis. The problem is that while women have moreso (although not entirely) been placed on an even playing field, they haven't been permitted to rise to the highest ranks (perhaps because of women not having sufficient time to filter through, but likely because cronyism and a lack of oversight are more notorious at this level). Analogous consequences hold for "minorities."
Cronyism is worth a special mention, because it's very subtle (people may tend to trust people they can relate to, even if they are less skilled). The (white Christian) men in power are less likely to relate with women/minorities because of their differing socialization. However, it seems that (white Christian) men with different attitudes and expression would likely struggle in a comparable way as women/minorities to connect with those in power.
Regarding (white) male bashing, it's sort of "trendy" because of their collective reward/work ratio (presently and historically). Still, women (and to a lesser extent other minorities) get beat on, too. However, if you are a person who refrains from such attacks, it can be frustrating to repeatedly to hear about how bad your group is, especially when your own expression is the antithesis to the stereotypes. When the generalizations are cliche, are from weak/nonexistent data, or are delivered in a hostile or one-sided way, it gets worse.
Ripping an individual is more reasonable since it allows a person to target particular characteristics of the person being spoken for. When you start making generalizations for a group that is bound by something not of their choosing (such as gender or ethnicity), there is not really so much you can speak to without being well off the mark for many individuals, and one should be mindful of the consequences. It's not about being "politically correct;" it's about not being an a-hole.
Alas, I'm probably preaching to the choir.
I'll list particular examples (in the spirit of the thread) when I have a little more time.