Tell you what, if the descendants of the alleged victims of this "racism" make it known that they find this usage offensive, I for one will drop it. On the basis of a blog post from, and I'm not sure of any other way to put this, a middle-aged white man however... I'm not so inclined. This feels uncomfortably similar to the "Latinx" debacle, in which people outside of the allegedly affected class took it upon themselves to find something to be offended by, then "fix" something the people themselves didn't think was broken... and certainly didn't want their "fix".
I think that's a good heuristic to apply.