Interesting analysis. One fatal flaw. These guys will be so repulsed by the idea that Joe Biden would be re-elected they they'll magically find it in their heart to forgive their Republican representatives. And everybody knows it.
That's really more of a Democrat worry. Republicans get roughly the same number of voters in every election; it's an almost creepily constitent thing, and all that really matters is the rubber stamp of RNC approval. Who wins the election depends very, VERY heavily on whether Democrats are turned off of voting or if they have the energy to get involved.