Wouldn't the exception be a single dad or a dad who's a primary caregiver (ie parents are divorced but dad spends more time with the kids, mom's always out, etc.)? Plus, with single dads it's either you respect or loathe (in the case of Tumblrinas) them.
A single father might have more put on them, but it doesn't really seem to warp kids the same way being raised by a bad mother does. The stats for increased crime rates in people raised by a single mother are pretty jaw dropping. Being raised by a single father leaves more emotions bundled up with the job they did, I believe that, but when mom isn't around, it's still just dad, hanging around and doing dad things.
Moms are always supposed to be there for you, no matter what, so if you can trace something negative regarding yourself back to your mom it's usually met with shock. Daddy issues are much more common and just kind of expected, so people learn to "deal with it". Mommy issues just kind of ferment because there's usually nobody to be able to vent to without being vilified for not loving the person who gave birth to you.
I was going to expand my thoughts on why so many more lolcows are male, and you kind of touched on it for me. It seems everyone has an issue or two with their father, I don't think I know anyone who isn't at least a little angry at their dad about something he did or didn't do, so much so that it's weirder when that's not the case. But I think it's more likely to manifest as an issue directly with him as an individual, not as something that changes your own behavior.
But it's usually mommy that turns kids into troons and serial killers, and it's dad who either nips that shit in the bud or ignores it till it's too late, or who's just absentee altogether.
Being a bit off center, mentally, stands out less in women and is more likely to get hand waved away. Alison Rapp is a disgusting unwashed pedophile whore who doesn't even have the emotional capacity to love her dog (and if you can't love your own dog then there's something incredibly wrong with you). It's remarkable how little there is to like about her, but because she's not physically repulsive at a glance, people gloss over how pathetic she is and even donate thousands of dollars to her.
Christian Weston Chandler, on the other hand, has an entire subforum dedicated to mocking every single thing he thinks says or does. The site only came into existence to point out every mistake he ever made.
But why is it that women have more get-out-of-acting-crazy-free passes than men tend to before they have kids, but the dynamic completely reverses when they become parents? The only explanation I can come up with is that even as a kid, you're supposed to have an unconditional bond with your mom and let the things she does slide. You're allowed to get angry at your father, you're even allowed to vent about it, most of the time you're even allowed to confront him directly and demand an explanation without anyone hating you for it. But you have to let your mommy issues quietly ferment. Until one day it all comes to a head and you wind up with either thread on the kiwifarms or a freezer full of missing people.