The PBP faction of the Republican Party understands perfectly that Trump has lost the election. In the interests of maintaining party unity as long as possible, its members have said as little as possible about Trump’s increasingly bizarre fraud theories. The moment of reckoning, however, gets closer with every passing day.
No later than the day the Electoral College votes, and probably sooner than that, the PBPs will have to acknowledge reality and start working with the president-elect. At that point, the portion of the Reactionary faction that is still loyal to Trump (i.e., most of it) will scream that it has been stabbed in the back by RINOs and will call for revenge. What happens after that will have a significant impact on the direction of the GOP as it goes into the 2022 and 2024 elections.
Trump has made a living dividing the country. It only seems fitting that one of the last acts of his presidency will be to split his own party.