Remove Hispanics, and it is right in the middle of the European spectrum of murder rates.
The argument that they put forward is essentially: We cannot keep guns out of the hands of irresponsible people unless we take them away from everyone except the military and police. Otherwise, the irresponsible people will just steal them!
That is their argument.
Hispanics are less clear. That is, in the gun control states, Hispanics are much more prone to gun violence. However, if you look at Hispanics on a national level, their gun violence rates are about the same as for non-Hispanic white people.
Black people, however, stick out like a sore thumb no matter where they are. Even in Arizona, where blacks are only 4.5% of the population, about 300,000 total, their annual gun violence rate approaches 25 per 100,000.