I understand your point.
My ears are wide open. Personally, if I had that plate, I would be directing the message towards the idiots that voted him in, not towards the elected man. The main goal that needs worked on at this point in history is finding a way to replace him in a few years, and hope we have any businesses or private savings left.
I believe he put 100% of his effort into getting elected, but then forgot that he needed to lead the country after that.
EDIT - anyways, I liken this license plate to someone i know who has NOAW BAN on his plates. He feels strongly there should not be a ban on assault weapons. He will always feel that way, regardless of how many laws are or are not passed. To me, that plate doesn't say "DONT ELECT HIM!", it just means "NO TO WHAT HE IS DOING".