I wonder how Mr. Johnson is proposing to do his enforcement, seeing as how the executive is the branch of government charged with enforcing the laws.

Congress could impeach. In a sane world, if the executive continually ignores Congress, then that's what would happen.

In a sane world. This particular person has been impeached and acquitted twice over, though, so I'm not sure we're there anymore.

Completely lose the zoomer voting base in the near to mid future?

Exactly. We could have had a discussion about whether a executive order can override house of representatives had such order be issued by Trump post inauguration yet overriding it prior to that should be the bigger deal here.

It's unfortunately not news that a Trump presidency doesn't respect the mores of the office.

The president can pardon people for breaking federal law and can stop the enforcement of federal law[1] so as president elect it makes sense that he can effectively neuter any federal law short of congress deciding he has gone to far and impeaching and removing him.

[1]i.e. federal agencies no longer prosecute personal marijuana use by executive order