Since we enacted the U.S. Constitution in 1789 we have glorified the principles of "separation of powers" among the legislative, judicial and executive branches of government. In the 1960s and 1970s some political groups shouted long and loudly that the judicial branch was "legislating from the bench." That is, with its decisions the judicial branch was not just declaring guilt or innocence, but was crafting solutions, which was the duty of the legislative branch and that the judicial branch was overstepping its constitutional role.
Today, we have an analogous situation. We have "legislating from the White House." By a barrage of executive orders, the executive branch has once again usurped the duties of the legislative branch. But there has not been any outcry.
There are quite a few possible explanations why no one is speaking out against this usurping of power. But I fear it is the worst of all the possibilities I could name. It is apathy coupled with ignorance.