> Firearms have no utility aside from hunting or warfare

Self defense is very much a valid reason. During the civil rights era firearms were used to defend against racist groups/lynch mobs by black communities. Fun fact: in some cases the police themselves even participated in the lynch mobs.

> Also there are many more cars being used per minute than guns so they will obviously have a higher rate of fatalities

And because of that, for literal decades motor vehicles have been the leading cause of death in children.

> Those motor vehicles are also taken away from individuals who are not using them in the prescribed manner

Vehicle ownership isn't a protected right, and one is only required to get insurance and licensing if operating on public roads. Registration, licensing, insurance, none of those things prevent people from misusing their cars to intentionally or otherwise harm others.