The difference between Australia and the US is that here in the US, we love our guns. A lot. Look what happened during the alcohol prohibition. Look how well our drug war is going. If you try to take guns away from Americans, especially the midwest, I will guarantee you there will be riots. I don't think some of you realize just how much American's love their guns.

I own exactly zero guns, but I fully support the 2nd amendment.

Using the argument of "Hardened criminals will still get them anyway" is like saying we shouldn't have a law against murder because some people will do it anyway, so it's a waste of time. The point is to deter or make it extremely difficult for as many people as possible

No, it is nothing like saying that. Murder in itself is a very bad thing. Owning a gun isn't a bad thing, it's what the gun can be capable of that is bad. Just like alcohol itself isn't a bad thing, it's what the person is capable of doing when drunk, that is bad. That's why alcohol isn't illegal, but driving drunk is. That's why guns shouldn't be illegal, but using them in an unsafe manner should be.