And background checks do not address the problem of what you can buy once you pass. Why would anyone need a semi-automatic rifle with armor piercing rounds and a 30-round magazine?!?
Because some "people" deserve to be killed. Gun control advocates for instance, the politicians who cater to them by legislating and enacting gun control and gun bans, and the "law enforcement" agents at the federal, state and local levels who enforce such "laws" (and who wear body armor as a matter of routine during their violent no-knock raids).