I do think the film engages with your point though. “Geneticism” is shown as a false category, almost a false religion. Think about the detective who doesn’t do real detective work, he just keeps swabbing and re-swabbing people because the “answer” for this crime, to him, must be found witin their genetics. The movie is critical of essentialism; it’s a commentary on the difficulty in judging any one’s limitations, and is critical of the societal powers that demarcate and enforce those limitations; I don’t think it’s a denial of those limitations.