Do you understand there all different forms of black-on-black racism?
Firstly, I hate the phrase black on black (crime), and I don't think you've ever seen me use it. Secondly, you are vastly overstating the racism at play in such crimes. If you believe the cause is systemic racism, that is still not a hate crime.
Yes, racism between black people is possible, but it's not nearly as common as you are making it out to be. No one says Daniel Shaver was killed because of racism. He was killed because of police brutality. The same is true or any number of black people. The cops didn't beat them because of a bias against their race.
Yes, the reasons they are in that position, living in poverty, living in those neighborhoods, getting pulled over by police more, etc etc etc, are all because of historic racism. That doesn't mean they were profiled *based on their race*.
There's a difference between "that black person is part of an inferior race, I'm going to punch him" and "that person is dressed like the gangsters I've seen on the south side, I better make sure he isn't carrying".
The pushback you're getting is because the pendulum has swung in this country from perpetrating racism to calling anything you don't like racism. Stacy Abrahams was yelling about white supremacy in congress today when the issue had nothing to do with that. When you call everything racism, then no one will care about the *real* racism when it happens.
So when a black guy is beaten by black cops and people cry "hate crime", you better believe there will be pushback. Cry police brutality. Cry systemic racism even! But unless you have evidence that there was hate involved then by default it is not a hate crime even if race is a factor.