Restrain your despair
I doubt there is more you could have done. You actively participate in your democratic rights and responsibilities, and you state your views to the world often and intelligently.
As I continually point out, Democrats do much better when Trump is not on the ticket, and I expect when he checks out a majority of his MAGA base will go back to their low-propensity voter mode. As for the rest of the non-MAGA GOP, they bite their lips and tolerate Trump for one reason: Tribalism is strong in America. If there is an "R" next to the name they will vote for them over a "D" almost regardless of who they are.
"...He soon enough, shall pass."
No. Definitely not soon enough.
