These folks don’t understand that we’re playing a different game now. We used to play a game called democracy. We voted, passed laws, debated, generally believed the other side could be compromised with, and read about it all in the newspaper. Over the last ~50 years, we’ve stopped playing the Democracy game. Now, we’re playing the calvin-ball-esque "Trump’s America". Where anything he says goes, and the laws don’t matter.
Trying to pass a new law is not only impossible in the do-nothing Congress, but is fundamentally futile. There's little reason to believe that something as silly as a law will restrain him.