It's like pointing out that car accidents kill ~10x more Americans a year than 9/11 did so why are we so obsessed with making sure you can't bring weapons on a plane? The
real threat is giving every moron with a pulse control over a 4,000lb wrecking ball.
Logically it's absolutely true that inattentive drivers are a greater risk to Americans than airline hijackers but 3,000+ people dying in one day in one location hits a lot harder than 30,000 people dying mostly one or two at a time, over 12 months, spread out across fifty states.