I used to think he was trolling or just saying the thing to get the votes. Over time I've become more and more convinced he is suffering from dementia.
I didn't want a president with dementia under Biden and I don't want one under Trump. The type of dementia Biden has causes you to fade away, so he was a do nothing leaving little to complain about. Trump repeatedly takes stupid actions because the part of his brain that handles impulse control is selectively rotting, lots to complain about.