Hardly. A tremendous amount of usurpation has been done to date using the Commerce Clause as justification. Roberts basically said it cannot be taken to the next level. But so what? Now usurped powers can be declared a tax, no Commerce Clause needed. All Congress has to do is prohibit something and attach a tax penalty and Roberts would vote to uphold it, the Tenth Amendment be damned. This was a really, really bad day for Federalism.
Obama will ignore the ruling about the commerce clause and coerce the States anyway if he has the instruments to do it. He’ll just cherry pick what laws to enforce and call it what he wants.