All gun shops need to start doing more selection of their customers, including researching their social media if availaible before they sell, it's probably frankly better than a FBI background checks.

Make their Dem customers explain why they should sell to them, when they vote for people who want them out of business. If their not off the deep end they can use it as an opportunity to educate rather than condemn.

More importantly it might help catch some loonies early.