He's right in pointing out how ridiculous these two facts are, especially in contrast to each other.

There is no good reason everyone has to take off our shoes at the airport. That's security theater.

I'm not sure how guns can be regulated to prevent school shootings.

Is this kind of like:  I can beat my sibling up, but don't you dare?

Kind of. Not just don't you dare, but also don't dare change the law that gives me ability to do so.