The problem of enforcement doesn't fall only on the executive branch. They're tasked with executing laws passed by congress. Congress is ultimately a check on the executive, and if they care to have their laws enforced they do have actions they could take.
Congres is a rabbit caught in the headlights of the MAGA cult but I admire your optimism.
The branches (including SCOTUS) are not meaningfully different when they are controlled by the same party.