I disagree.
I think (hope) that the Republicans have learned their lesson about electing 70-somethings to the White House, and after the unpopularity of Trump, I think most conservatives will rally around someone with much more appeal to
most conservatives.
I think that people forget that Trump won through attrition. In March 2016, he was polling only about 30% approval.
https://www.nbcnews.com/politics/201...-looms-n548731