These actors didn't learn how to act with a gun as a prop in high school plays, no sir, that's Hollywood.
Guns sell movies. Period.
Guns are as important to Hollywood movies as the forward pass is to football.
And busloads of Hollywood stars who shoot everything that moves in their films make more than CEOs of gun manufacturers. Maybe I'll listen to one of them lecture once they sweep their side of the street - or at least call out for it. Won't hold my breath waiting, though.
Tits also sell movies.
I like guns and tits. You wave neither in my face if you intend to take them away from me.