The power of the Presidency has been slowly expanded over the last few centuries. Each time, when the power was expanded, it was done so under a President who seemed reasonable enough that nobody was afraid of what the change truly meant. They knew that their current President wouldn't abuse it, and they didn't think much further ahead than that. Many of these expansions of power were made for very short-term politic…
I have no stakes in here (I'm not American), but as far as I know, he's just doing what he promised he'd do if he got elected. What you're asking for is... to protect people from themselves? I don't understand.
The foundation of "checks and balances" in the United States was that we have representatives that would speak for the people. Those congressional representatives would move the ball forward. The president was never supposed to have the power to create unilateral policy. In a sense, the people need protection from someone they never wanted in the first place. The majority of Trumps views are held only by the minority. This is what people need protection from.