She seems to have a cognitive dissonance about Trump. She blames him 100% for not building the wall when he did everything he could to get it built. The quick 180° she did with Trump is so strange it makes me wonder if she personally got her nose out of joint about something he said or did. It's sort of like when Trump told the story about Joe and Mike visiting him in Florida and Mika was bandaged from her face lift. After that, Mrs and Mr Brzezinski had a pathological hatred for Trump.
I’m inclined to agree with you about Coulter’s problem. I have yet to see anything from her that would indicate what she would have done differently if she were President.