I understand where you are going with that. But my point even with that is that even if you did sit down one of these liberals and gave them the best training possible with a firearm, that still wouldn't change their position. And I would wager that even if they emerged from that course, you wouldn't take their argument more seriously, either. So really, what does being educated about weapons have to do with this particular subject?
Their argument is based on emotion. You're not going to reason with someone that has an emotional position.