That's still anecdote. You haven't even established which "side" is promoting this 100% nurture story. The vast majority of the progressives / socially liberal

That's still anecdote. You haven't even established which "side" is promoting this 100% nurture story. The vast majority of the progressives / socially liberal people I personally know think that both nature and nurture are factors. So it must be the conservatives who believe that nurture is 100% and are promoting this idea? We both know that's not the case. So is there really a "side" promoting a 100% nurture theory? Or just a few people pushing an extreme theory that is then sensationalized by the media? That's why you need data and numbers to prove your point instead of one anecdotal data point. One example is close to useless, and a widespread news story is not evidence of what people believe.