The main issue with the Children of Men was the fact that almost all of the women were infertile. My issue with this is that there are other ways of having children, like a test tube baby. If this film follows real life events until 2006 then test tube babies would exist. The first test tube baby was born in 1978 so why couldn’t the world look to this as a solution? It does not require women to carry the baby, all it requires is egg and sperm. So if test tube babies existed during and before the movie takes place then why is there so much widespread disaster? Yes, there would still be struggles but the entire world would still be able to function with a smaller population, like it did in the past. If anything this would allow for population control, which may be a good thing depending upon your belief of the human race. Either way the main plot of the movie can be completely negated by the existence of test tube babies. Plus there are egg and sperm banks so the population could still continue for the 18 years of infertility.