How to handle my dad’s anger issues and insistence on driving when in dementia stage that prevents him from being able to do so?

I’ve read your other threads about how Dad has dementia and how confused he is , he can’t remember your Mom died , he tries to leave his own home to “ go home “ and you have moved in with him . He also does not recognize when he’s incontinent .

Take the car away . Out of sight out of mind perhaps . Also is he on any meds to calm him down ? Ask the doctor .

I would start looking for a memory care facility to place him . This is not working at home .

You let him be angry. So he is angry, so what?

How old is your Dad? What is going on that is causing you to think he shouldn't be driving? Is anyone his PoA? Does he have an actual medical diagnosis in his records of cognitive/memory impairment? If he ever starts raging at you, making even verbal threats or you feel physically threatened, then call 911. He may be able to be Baker Acted at the ER. This may be a useful strategy if is not currently on meds for his aggression/agitation. You would need to go with him to tell the staff that (assuming you live with him) feel unsafe with him at home due to his temper. If he doesn't have a diagnosis and has no PoA, it will be very tricky to get him to stop driving voluntarily. Not impossible, just tricky. Even if you discretely disabled his car, it's not uncommon for people to call to have the car towed and "repaired". Some people have even gone out and bought new cars. It all depends on just how bad/dangerous of a driver he is. More info would be helpful.