I see this a lot, both here and in life. People saying gun control will never work, and that if criminals want guns, they will get it.
Here's a question. If teenagers want alcohol, they will find a way to get it despite there being regulations on it (The drinking age). Look at college campus, or high school parties. So, why bother having the drinking age if people under it rarely pay attention to it? How is it any different to gun regulations that would be ignored?
"To conquer a nation you must first disarm its citizens. "- Hitler
Hitler, Stalin, and Zedong took the guns away from the people. And then look what happened, millions of people ended up killed because they couldn't defend themselves against government aggression.