> This can potentially enable an end run around congress and the courts in that the President can easily choose to interpret laws in a manner inconsistent with the intent of congress and courts.

How does it potentially enable that? The executive branch has always served under the delegated authority of the president. The executive branch has always been able to operate outside the laws as written and ruled on by the other branches, because they have practically no hard power.

Presumably the citizen militia are supposed to be the check and balance for that. The people have always been the ultimate deciders of the government's power.