I think Republicans who think the party you will learn its lesson and return to form in 2020 are in for a rough surprise. The primary voters who became Trump's army isn't going away any time soon.
Either they leave, or I leave, and I plan on doing whatever I can to ensure it's the former. The anti-Trump portion represents a disproportionate amount of wealth compared to the Deplorables. I'm sure we will be using this to our advantage when people who supported Trump in the primary run for reelection.