Wow. Wow wow wow.
That guy takes the fragile-male-ego-entitlement cake.
So many problems...which one to address first.
1. Approaching co-workers for a date is risky at best these days.
2. Setting aside the co-worker status, someone can turn you down for a date for any reason. Or no reason. You don't get to decide what reasons are "acceptable". This isn't preschool with a grown-up making sure everyone gets the same number of jelly beans.
3. Laughable part: this guy clearly has no idea what HR is for, or that he pretty much just reported himself for harassment. What a moron.
4. The part about yelling "you childless women are all the same" tells me volumes. He's asked out a lot of women, and given his horrible, misogynist social skills he's likely been turned down a lot or had very few second dates. He's done this enough to notice that CL/CF women see right through his bullshit and it enrages him.
4a. Thus, he should not be dating/inflicting himself on anyone at all, until he works through his shit.