Don't use automobiles crashes as a means to justify your argument.... it's lame. Unless kids are using cars to plow down other kids at schools... then there is no comparison!
I live in Canada where we have drugs, broken families, mental illness, and guns too. But guess what, we do not have a lot of mass shootings. Why? We can't just go to the store and buy an automatic/semi-automatic or get one for free when we sign up for a bank account or buy a new car, etc. Automatic/semi-automatic weapons are not easy to come by. Most readily available guns in Canada are used for hunting and mainly consists of single shot rifles. It isn't easy to plow down a bunch of people with a shotgun. People do not need automatic/semi-automatic weapons to hunt!
Other first world nations have the same social issues as the US but they have more gun control than the US? How does mass shootings in the US compare to where you are living Steve? ... I thought so!
People can spin it however they want... until gun-loving dingbats and dirty politicians change their ways, this will never change!