“The consensus opinion is that Trump is the deranged one. “
Only in your imagination.
Take a look at the post-debate polls.
If you’re too lazy, look no further than the daily poll here on Free Republic, which has had Trump ahead (usually 2 to 1) every day that it’s been held.
Winning with 34-35% in the polls should be a clue that the other 65% can’t stand the guy. He is at his ceiling.