My gut feeling is that next person after him (if he actually gives up office which is in land of wishful thinking at this point) may be worse, and even visibly worse and US folks will still vote for him/her.
I sure hope my gut is wildly incorrect this time, for me, you, and mankind overall.
Pray that you'll see the end of it in 3 years. It would be surprise if that ship can be turned around.