I'm not saying he's stupid or bad, but he does have lazy and incompetent parents who don't really take the time to deal with their kids' issues and sort them out and, you know,
parent the poor kids.

Which isn't right.
He developed an unnatural fear of toilet-training at about the age of 2, when most kids would be taking an interest in potty-training, when he had an accident (he pooped) in the tub. Rather than let him know it was OK and that potty-training wasn't anything to be scared of, his parents mocked him for the episode and thought it was
funny. Which, OK, it is kind of funny (and the kind of thing you embarrass the kid's first date with), but when it causes your kid discomfort and fear and delays a developmental milestone? You should be taking your kid to the pediatrician or a child psychologist, not mocking him or laughing at him and causing him discomfort and
more insecurity. You especially shouldn't get angry at him for having an accident in the tub (which she did), because he was, at the time, a toddler, who didn't quite have control of his bowel and bladder functions at that point. You just clean and disinfect the tub, reassure the child and move on.
I'm not a parent and I know that.
Cruelty, mockery, humiliation - all of these are a part of June's repertoire as a parent (and as a person) and it doesn't do much to raise my estimation of her as a parent or a human being. I'm not saying the kid's dumb. The poor little guy should have been at least toilet-trained to the point where he could, say, go by himself but not wipe himself, by the time he was 3. But he was completely, absolutely afraid of using the toilet. At all. Until this year. Because his mom made fun of him for it.
Granted, it's pretty normal for kids to be afraid of potty-training - initially. But you work with your child, possibly with the pediatrician, and help your kid conquer the fear. But if we had dared laugh at the child for being afraid to use the potty, June wouldn't think it was funny at all, yet she herself thought it was hilarious, and that it was perfectly OK for her to mock her own kid for not being a "big boy" and being afraid of things kids are normally afraid of: the dark, using the potty, etc. What kind of parent is that?