why is it so difficult for so many to accept and report that interracial violence in our societies is overwhelmingly of the white victim / non-white perpetrator kind?
You don’t have to run around in a costume made out of bedsheet to question the priorities of those who worry about racism and racial or racist violence.
Why is it so difficult? That's because this sort of blogosphere rubbish is spouted by people who suck at statistics. Like you do, you dumb twit.

Here you go and I'll spell it for you so that even you might understand it. Let's say that race A = 90% of the population, race B 10%. Then by chance 90% of criminal acts committed by criminals from either race A or B will be against race A. It's not out of racial preference for victims that B chooses A 90% of the time, while A only chooses B 10% of the time.
Even when we allow for B being responsible for half of all crime, this principle holds. Worrying is indeed that 10% of the population is responsible for half of all crime, sure. But for choice of victims, the numbers point to statistical chance rather than to racist motivation.