> Race can be determined by DNA testing

Wading into a minefield here, but is this even remotely true?

My understanding of DNA testing is that it can only tell you what genes a person has. I wasn't aware of any reliable way to cluster genes into racial groups. (The 23 & me stuff is all probabilities, wide percentage ranges, etc.)

Further, I thought it was the case that science has basically abandoned the concept of race specifically because it couldn't be reliably measured, even by DNA analysis. Is this not the case? What am I missing?