Justice Roberts is a disgrace.
That was judicial activism. He ruled that Obamacare was unconstitutional as it was passed because Congress didn't have the authority to impose a penalty on Americans under the Commerce Clause. It was then the job of Congress to try to repass the bill with the individual mandate as a tax.
What Roberts did was change the individual mandate from a penalty to a tax from the bench. This is insane. If Congress didn't have the authority under the Commerce Clause to penalize Americans for not buying heath insurance then Obamacare is unconstitutional. It's not Roberts job to change it from a penalty to a tax from the bench.