Well, they always just ramble on with lie after lie after lie. It's important not to let them do that. The "Criminals won't obey laws" argument is easy to dismantle. Ask them why they are in favor of any laws. Mention the National Firearms Act which has worked perfectly for 80 years. Most of the time we don't contest them out of a sense of courtesy they don't deserve. Thanks for the comment, I know we live in frustrating times.