My mother and father are 90. She has multiple issues and he has diabetes and dementia. It is their house so my father still runs the show even though he does everything incorrectly. He complains about every professional that comes to the house. I have been living there, watching my parents destroy themselves. I am ready to move out. What do you suggest?
I agree with what was said above. Someone with dementia should not be calling the shots. Leaving and letting the cards fall where they may could result in a house fire or some other tragic situation but your dad's insistence that everything be done his way is putting both of them at risk as well. And even with you there their situation is bad so I can only imagine what would happen if you left, although I can understand why you would want to. If you did leave, just leave them at your dad's mercy, I wonder if you could get in trouble with authorities? That's something to think about.
What are some of the destructive behaviors?
But here is the bottom line in my mind: Dad has dementia. A person with dementia should not be in charge of making decisions for his own care, let alone someone else's. Maybe he legally still can (if he is not legally incompetent) but morally (in my mind) it is not right to allow/enable him to be in charge. Not that he is bad ... that he has plaques or clumps or tangles or protein deposits or something else in his brain that interferes with judgment. He can't help it. It is not his fault, but he and your mother need to be protected from his bad decisions.
If you can stay there and somehow manage to take charge, that would be awesome. Staying there and watching them self-destruct doesn't seem like a good thing for any of you.
Before you throw in the towel, see if you can get some training in how to be a caregiver in this situation. Find a local support group. Come back here with specific situations that are challenging you. Discuss the situation with Department of Aging and Disabilities in your area (or whatever it is called where you are.) Call the local Alzheimer association (even if he has some other kind of dementia). None of us is born knowing how to do this extremely difficult job. Love is a good start, but it is not enough.
My best wishes to you as you struggle with this.