Cars really depend on where you are. The US is huge, and it's not really possible to live in e.g. rural Texas without owning a car. Everything is miles and miles apart. On the flip side, New York has an efficient subway and few people own cars. But with the geography of America, it's simply not practical to have the same sort of public transport common in Europe.. the country is 3000 miles wide.

Unfortunately having cars everywhere (and a car-centric culture and urban landscape) will probably kill more people in the long run via CO2 emissions than gun domestic deaths. The collapse of the entire ecosystem and the corresponding mass extinction is undeniably the most important problem of this century.

While technically true, why is this a useful argument? Amount of guns and amount of cars are not linked in any way