The article doesn't directly equate phrenology with Nazis, but does make an implied connection between phrenology and Nazi craniometry, and goes on to quote a t

The article doesn't directly equate phrenology with Nazis, but does make an implied connection between phrenology and Nazi craniometry, and goes on to quote a tweet which explicitly talks about Nazi atrocities being the driving force in the end of phrenology. The entire reference feels like an overreach, however, not just because of the Reductio ad Hitlerum, but also because it begs the question on the inherent evil of any use of craniometry.