Lol that's crazy. My dad is exactly like this. Pretty much never seems to listen because he clearly knows what's best. You know, after losing our house on a failed business, cheating on my mom, and getting me into literally scam level job opportunities.
I tell him to do something or that something he does bothers me, I can pretty much trust that he will forget tomorrow. It's not dementia, because he's always been like this lmao. Tried not to interact with him too much but it's really hard for some families to do that
Oof... this is accurate even down to the fact that my mom is attached to me because I'm pretty much the only one in the family who treats her like a human being. She recovered from some pretty serious cancer cuz of all the stress my dad was putting her through lol.