Hello Chaise and welcome
I thinK DC can certainly be abusive, very, highly, dangerously so, and evenn more dangerous to leave it go.
They often become abusive from being around an abuser who puts you down and treats you like crap generally, they pick up on it, develop habits, ways of getting what they want. They become highly abusive. One of mine was this way, screaming and shouting in my face, pursuing me round the house, not respecting any boundaries.
Not any more I'm happy to say, but it was hell, because i'd also just separated from a FW too, who got considerably worse, and PTSD flared up for me, so i had a complete melt-down, but with support, managed to realise that I was allowed to have boundaries and not be shredded for asserting them.
The boundaries are key. Do Cahms not think so? How are you supposed to have boundaries? Yes, yes, I know about ignore and i ignore a lot, but with abusers certainly igoring is nnot really an option because thats a cue to escalate to make sure they get heard, that was certainly my situation.
I picked certain things that i was not going to back down on, and argued myself into them knowing i had to stick to my guns no matter what, and there was a lot! There was a lot of self-harming too (DC). Although there's still rudeness and trying to goad I do a lot more deflecting and leaving behind, and its better accepted, but its taken time. the suicide attempts on their part and the self-harming has all stopped and there is much more calmness in the DC. I struggled to find any help with this at all, but i had some sense of support because I was going to the freedom programme at the time due to FW.
With DC they are growing, and changing and hopefully developing emotional maturity, learning how to meet boundaries and deal with themselves, so not 'abusers', but certainly much abuse is possible. Whereas FWs, abusers, and not developing and growing, but just honing their skills at coercion, very different thing.
Can I just ask.. does he get 'x-box, tablet, the [demanded] food'?