Chase's parents (Ashley Miller and Connor Niles) did try to protect by allowing him to go to a different path, being an actor, while the rest of the siblings (including the omega) became Lawyers like Ashley did, so they won't have to interact as much. Ashley knew he was different but since he had 100 percent chance of being an extreme like the rest of them, he didn't know how to show his care (he had damaged due to neglecting himself for Connor) so, being an actor when he was young was a way.
Grayson suffered the most of the abuse Ashley did to him. (locked him up in a dark room for days without food or water, as punishment) Grayson is heavily misunderstood, trust me, just read his story cause everything makes sense when you read it.
How did the parents raise their child to be that vicious? Or did they just give up on disciplining him and decided that the omega brother was the only one worth protecting the most? Bruh I want him to get a taste of his own medicine, that grayson guy.