Can you elaborate? Trump has repeatedly claimed that he would conduct mass deportations, with little to no regard to legal status. And he would have near absolute immunity from prosecution even if he breaks the law. Impeachment is basically impossible as we've already seen. What is there to stop him?
Not long ago I watched "Vice" (2018 film). So I understand what you're talking about and I think you're right.
Whatever the president does is actually legal because he acts on behalf of the country (for good or for harm).
Dick Cheney clearly demonstrated what it means to fuck the letter of the law while following it.