Not only that, but the fedguv holds that intrastate commerce which substantially affects interstate commerce can also be regulated.
Scalia really screwed up with Gonzales v Raich. Maybe he’ll have a chance to redeem himself.
It's worse than that:
Where necessary to make a regulation of interstate commerce effective, Congress may regulate even those intrastate activities that do not themselves substantially affect interstate commerce.
J. Scalia, concurring in Raich