..the concept of race doesn't make a whole lot of sense.
We use race as a proxy for ancestry/ethnicity...except
for when we don't. See also the black vs Black dustups here.
That said, if someone wants to identify as black, and they
can get everybody else to view them as black (because
arguably the distinguishing feature of being black in this
country is that everybody else sees you as black), then
it's fine with me. It's not like race is some sacred,
super-scientific designation.

I think in this recent case though, the issue is that
non-crazy people don't tend to do this sort of stuff.