It's total smart-arsed pseudointellectual garbage
While I haven't seen it, the whole premise is precisely what Tetro Kornbluth describe, and the film may be quite good, I don't know, but don't make a mistake, the premise was quite popular in the early 20th century, and served as a major part in very ugly policies of mass sterilisation, or in case of Germany killings, of undesirable with perceived "inferior" genes (and here I don't talk about the Jews, but the mental handicapped, handicapped, promiculous young girls, homosexuals and a lot other groups). Someone I knew worked at a German mental institution in the 80ties, and he described that there was no one above a specific age (people born before 1946) at the institution, this policies was push through to avoid a degenerated future humanity as shown in the movie.