The flip side of incrementalism is exaggerated rigidity. A foolish consistency is the hobgoblin of little minds (Thanks, Emerson!)
You need to not be a criminal to own a gun. I like that rule. Having the rule is only step one. Enforcing the rule is step two. Making the seller of a firearm responsible for confirming that the buyer is legal is easy, logical, and does not infringe upon a single right (CT has a free call-in system where you call an 800 number, run the check, get a "yea" or "nay" and a confirmation number). The seller can still choose to sell the weapon, even if the buyer fails the check, the seller just has to acknowledge that he has committed a crime.
It gives the power and the responsibility back to the people. I can accept that.