Probably because blacks cause more crimes per capita.
– FACT: Despite making up just 13% of the population, blacks commit around half of homicides in the United States.
DOJ statistics show that between 1980 and 2008, blacks committed 52% of homicides, compared to 45% of homicides committed by whites.
More up to date
FBI statistics tell a similar story. In 2013, black criminals carried out 38% of murders, compared to 31.1% for whites, again despite the fact that there are five times more white people in the U.S.
– FACT: From 2011 to 2013, 38.5 per cent of people arrested for murder, manslaughter, rape, robbery, and aggravated assault were black. This figure is three times higher than the 13% black population figure. When you account for the fact that black males aged 15-34, who account for around 3% of the population, are responsible for the vast majority of these crimes, the figures are even more staggering.
– FACT: Despite the fact that black people commit an equal or greater number of violent crimes than whites, whites are almost TWICE as likely to be killed by police officers.
According to data from the Centers for Disease Control, between 1999 and 2011, 2,151 whites died as a result of being shot by police compared to 1,130 blacks.