I remembered someone in trf saying that they used to checkbox "caucasian" on job applications but never got called back. When they stopped doing that, the same places they'd applied previously actually called.
And, duh, I actually was dumb enough to checkbox my race on my state career center online resume. STUPID. I have now corrected that.
I don't know if it'll make a difference, because I might not actually even be qualified for the new listing I'm considering applying for, but it will be interesting to see what happens from here on out.