And to demonstrate their full power, have your kids pick up a very thick, very solid object. Ask them to try to break it. Have them punch it, kick it, drop it on the ground and not suffer any damage. Then point the gun at it and fire. After you've fired at the object, show them the damage. That will show them that guns are not toys.
Once you've done that, you can teach them how to shoot.
I wouldn't call their responses toxic, but I would call them unfair. People need to realize that the CEOs of Fortune 500 companies don't take unsolicited advice from anonymous armchair quarterbacks.
Here are the many responses I've made to people who want to eliminate 3D computer animation.