Well, maybe more embarrassingly I read your post backwards. But Thomas' concurrence is basically "only Congress can legislate".

I will say it's super unclear how our government works now. SCOTUS is like "sure, go ahead and delegate" but what they mean is "only as much as we let you... looking at you Democratic administrations". MAGA has--through half statements and gaslighting, made it clear that the only principle is that they have power and their opposition doesn't. If that means the Executive is powerful when it's Republican and weak when it's Democratic, well he who saves his country breaks no law.