Claiming the left thinks they can prevent all shootings is a straw man argument. What they do claim is that restricting guns would probably make the frequency go down and more then likely the damage done when these attacks do happen will be less severe. But that's a harder argument for you to win, so you rather revert to this old chestnut.
I see your point. And whether the argument is old or not is irrelevant if it's a vital issue like the 2nd Amendment.
And doing nothing is unfortunately also a bad idea.
2nd Amendment rights must be protected.....not always eroded.
The argument that giving up a pound more liberty for an ounce of security is dangerous and is also a very valid argument.
The UK has no 2nd Amendment and FAR fewer guns, yet they have not only a dramatic rise in crime, but also gun related violence.
How long do you think it will be before the UK has a mass shooting at one of it's schools? I say it will be within a year. We'll see.
So let them argue their talking points.....the Pro 2nd Amendment side needs to voice it's own arguments and demands.