Parents are humans with their own flaws and backstories. They've had (presumably) 20 years of the worlds bullshit flung at them before you entered the picture. Can they be nice? Sure. But as you become an adult try to forgive them for the times they failed. Chances are they were doing the best they could with what they had at the time.
As a parent I try to listen with an open mind and admit when I'm probably a little biased. I still get called out and grump about it.
If there's anything you want to share, I'm willing to listen.
Nah, they move so slow he will be gone one way or another. Unless he becomes MECHA-TRUMP!