They will soon revolt to save their own necks and if they think they’re in danger of losing that seat
And most of them are in danger already and its only been 6 months
But the Parliament has a fixed term of five years. No Member is in danger of losing his seat until Trump’s term expires.
If it collapses into chaos the King would be within his authority to dismiss it and allow for new elections.
It would have to be extraordinary for that to happen as the monarch has largely remained out of direct political acts for a long time, but it could still happen. Last time was in Australia in the 70s.