Carjacking is a subset of motor vehicle theft, which is an index crime, but carjacking commands more public attention than anything except for murder; this is a vibes-based assertion but I feel like I could back it up easily.

Importantly: the carjacking wave wasn't Foxx's fault (it was in fact Kia's fault). She was in an incredibly tough position --- she also had to deal with Chicagoland police departments that have not covered themselves in glory over the last 20 years. But she didn't rise to the challenge.