People like the Trump cultists here actually think that they wouldn't eventually go under the bus, if the Stalinist utopia that they desire ever came about.
They would. Once morality and the rule of law has been abandoned, as it has been in the Trump cult, there's nothing to stop the depraved from backstabbing the other depraved members of TheParty, so they would.
Look at the personalities of the Trump cult misfits here. They wouldn't be popular, so they'd be backstabbed by groups of the more popular kidz.
It's happened over and over. Various Roman leaders declared random merchants to be EnemiesOfTheState, to justify stealing their stuff. A king backstabbed the Knights Templar to steal their stuff. Only the rule of law and the pure shining light of liberal moral absolutism stops such behavior.