> Regulatory agencies limit uses of other products without acts of congress-- cigarettes, vapes, drugs, pesticides, chemicals, explosives.

Every one of those is by a regulatory agency that was explicitly empowered by Congress to do such regulation.

until it isn't, i.e. certain rulings over the last couple years...

right, and one minute to the next a gun you bought could be a crime to own and land you in jail LOL.

congress has abdicated its role entirely.