Don't many federal bureaucracies have the ability to make "rules" which have the force of law?Yup. Let's say I make a GMO version of cilantro that'll give you a Jamiacan Grade-A head rush. The DEA can make cilantro a controlled substance. No congressional action required. Now the layman might think spotting the separation of powers problem here is easier than finding Waldo, but the FedGov reality distortion field filters that out.
I view that as a violation of the principle of the "rule of law" on which our freedom has always has been based. That is that bureaucracies have the power to make arbitrary decisions