That's fair enough. At least you're looking deeper into the statistics now. And yes, I saw that too (absolute numbers versus proportion of population)
Of course, I could go a step further while coming full circle and ask why the cop-on-perp kill percentages differ so drastically by racial demographic (even if we were to ignore actual guilt or lack thereof) or why, despite the similarity in absolute numbers for crimes where the perp is known, the imprisonment rate by demographic also differs so drastically.
And yes, it is depressing. It really really is.