221 mostly white people were killed by white people wielding "assault" rifles.
What about the 6000 young black men who were killed by other young black men with handguns? Why don't you care about them?
You are worried about a weapon that accounts for .04% of homicides annually while you ignore the weapon that accounts for 54% of all homicides annually. You also ignore the fact that young black men who only account for about 3% of our population make up 54% of our annual homicide victims. So keep going after a gun that kills mainly white people.
Before you ask for a citation, I got those statistics from the FBI and the ATF