Phrenological propensities are were a social construct. Skulls and variation within them exist. Ditto for human biological variation in other things. You can call that race, but nobody else thinks of Senogambia when you say “the milk drinking race”, and words don’t have fixed meanings independent of how they’re understood.
Sorry if I came off as a little abrasive there, that wasn’t my intention, I was basically just saying we should agree to disagree at some point.