I'm not going to take sides in this dispute, because, like some, I'm not an American!
But I will say this about politicians generally: Am I the only one who finds it more than a little odd that people who have decades in politics, and had many many chances to solve the problems the US and other countries are facing today, are criticizing someone who has been at this for less than four years?
If these people are running on their record . . . I would say the very best they can offer is that things will be no worse once they leave. The won't, without a doubt, be any better, based on their history, so as long as "no worse" is the best you're prepared to hope for, then vote for them.
This applies to politicians in every country - if you haven't solved the problem when you had the chance, you don't get to criticize someone who's getting at it for the first time.