Earlier quoted context omitted.
Seeing as Trump can’t do much without congress, I don’t get your point. His executive orders are limited m, and the judiciary is the branch that tells him that, the legislative branch has more power but doesn’t get to tell trump what his executive orders can do like the judicial system.
The point is that Congress should not let in the hands of a person like D.T. the important task of defining which companies should operate in the country. There should be legislation to determine this.
An executive order can literally declare anything it wants. If it goes against the law, that is where the courts come in. Congress can't tell the president what he can and cannot write, if the president writes an order that goes against the law, that is where the courts come in (and that is what is happening).