Actually, the truth is the opposite.
If Dana White's own mother vilifies him in public, then he must really be a shitbag.
If anyone's son/daughter is truly a piece of shit (e.g., Jeffrey Dahmer), then if they have any honesty in them at all, they will admit their child turned out to be a piece of shit.
If you still love a shitty person, no matter what they have done, that means you have no standards.
If you still speak good of them, then you're a liar at heart.
If my son killed people, disenfranchised people, or used people and didn't give them what they earned ... then I would personally be kicking his head as the curb for his actions. I would NOT be "loving him" in spite of his degeneracy.
The final truth is, if your own offspring is a piece of shit, then this is either because:
1) you were a piece of shit as a parent, or
2) your offspring was a genetic piece of shit.