So what? That’s how the elderly people getting robbed, raped and murdered saw it. Does their suffering count for nothing?
Elder whites in Rosedale were specifically targeted for violence. The verbatim confessions of the perpetrators admit this. The crime data record this. The same pattern now repeats with elderly Asians. Whatever you think of the author, a committed liberal whose distaste for the racist speech of some interview subjects is palpable, the facts stand on their own.
If you want to talk statistics, the racial disparities in both inter- and intra-race violence remain even at comparable income levels. They are especially pronounced between blacks and Asians. It’s not necessary to speculate as to reasons in order to note that it’s true. Without acknowledging something’s happening, it cannot be addressed and is impossible to fix.
The lack of attention to anti-Asian violence relates to the identities of the perpetrators, as you know. These stories also fall out of the news much quicker than, for instance, the killing of Ahmaud Arbery.
* on average on all partitions with |A| \le |B|
Your statistics are uninteresting; the largest demographic is indeed the primary recipient of inter-demographic action from the second-largest demographic. This is to be expected in any interaction across any demographic boundary. Trying to use to it to advance some agenda is disingenuous, especially since 80% of all white people murdered are murdered by white people -- in other words, you're dealing with marginalia here.
The claim about the "lack of media attention" for black-on-asian violence is similarly absurd, since there is plentiful media coverage of the problem as a whole and your provided example in specific, as demonstrated in the sources cited by your Wikipedia link.