I agree the movement takes a big hit when he goes, but I also believe the MAGA elite have a plan in place to address that, part of which would entail the martyring of Trump upon his death (odds of blaming Democrats for his "murder" = 100% ± 0), and passing the baton to the successor they think can most successfully carry on in his name. Believe it or not, I think Don Jr might be the guy, and it might actually work, at least among the most ardent trumpaholics, especially those in the white supremacist activist wing of the movement.