Robert`s opinion on the Commerce Clause was his and his ONLY !
The other judicial activists saw no problem with the Commerce Clause whereas the Originalists did NOT join Roberts in his opinion regarding the clause.
Commerce Clause REMAINS in full effect in width and breadth ( tough luck Krauthammer, Will and all other you pinheads looking for the silver lining)
AND
Roberts expanded the power of Govt. beyond all recognition.
USA RIP
"The Federal Government may enact a tax on an activity that it cannot authorize, forbid, or otherwise control."
J. Roberts
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"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
But the dissenters were actually more sweeping in the Commerce Clause limitations than Roberts.