Yes, exactly. A law duly passed can’t be changed through executive order. Trump is wrong here even though he’s right on the issue. It’s unconstitutional.
Dodd Frank is bad law but the process needs to go through Congress.
See my note at #10.
It lays out general philosophical principles and directs the secretary of the treasury to prepare a report within 120 days analyzing whether federal law interferes with those philosophical goals. Not unconstitutional at all. Fairly milquetoast. Shot across the bow at most.