Before long the Right will need to reunify, so let’s not burn any bridges.
How is the Right going to work together as a coalition after Trump?
In short: If you want to win, you need allies. And if you want to survive losses, you need friends. You always will.
The second group for whom there is a rational explanation is those who emerged for the first time as voices in the Trump era, and fear that they won’t be able to continue if a New Normal sets in. Trump was the first leader of the Republican party in my lifetime that a large segment of the conservative commentariat could not stomach at all. Driving a lot of established and talented people into opposition, or at least personal opposition of the party leader, created a vacuum: There were still pro-Trump messages to be carried, and too few people to carry them. As in any era, some of the people who jumped on those opportunities are shrewd folks with something worthwhile to say. But others just got jobs because jobs needed doing, like the NFL replacement players in 1987 who found themselves out of work again when the strike ended.
If you didn’t have what it takes to find an audience before 2015, and have been able to do so only because too few of the leading people in conservative media were willing to say the things needed to defend Trump across the board, then your worst fear will be the end of the internal division of the coalition. If civil war is the only way you can stay employed, you will want it to last forever.