How to Make a Liberal's Brain Short Circuit or Why We Need Stricter Limits on the Use of the Commerce Clause

As we know, defenders of Obamacare have used the interstate commerce clause as a shield to attacks that the individual mandate is unconstitutional.  Basically, if someone doesn't buy health insurance that has an economic impact that goes beyond state lines and that can be regulated.  The great folks at Powerline though come up with a great reason why liberals should be wary of commerce clause overreach:

Imagine what liberals would say if Congress decided to regulate abortion on the grounds that while no single abortion has a discernable effect on commerce, an abortion—taken together with hundreds of thousands of other abortions—would have a depressing effect on the commerce of baby formula, bassinets, teddy bears, children's clothing (not to mention the Social Security and Medicare actuarial balances), so therefore we must invoke the commerce clause to restrict abortion.