It's not supposed to be taken seriously. This was a person who thinks mass shootings are a necessity because everyone needs to have easy access to guns. Part of a large group of people who think it's actually reasonable to have to defend yourself from shooters at any moment, and who downplay the difficulty of protecting yourself from a shooter. THIS is the reality. You might never even know there's a shooter.
This isn't Charlie Kirk, but a bunch of other second amendment advocates being mocked by Sacha Baron Cohen. They all seemed to agree it'd be great to give school children guns to prevent school shooting. Because that's the best solution, rather than having fewer crazy people with guns.
If one of these people gets shot from a distance and people say "what a pussy, didn't even attempt to defend himself", it's to point out how dishonest their rhetoric is: You CAN'T just magically protect yourself from other people with guns just because you have a gun. It doesn't work that way. It's not just the distance either. Someone could walk around with a loaded firearm concealed in a comically large hoodie pocket and just pull the trigger standing right behind you, you'd never know he wanted to kill you. But THEY pretend that it's OK that every would-be shooter in the country has access to firearms, because you, too, can have access to firearms, and therefore it's completely trivial to protect yourself. It's not.