The Limit of Multipolar Traps

A world population that butts up against the limits of what our niche can support. Human behavior has not yet adapted to contemporary conditions. We actively sabotage fertility by using birth control in the environment of evolutionary adaptiveness. There would be a huge selective advantage to having a more direct desire for being the biological parent to the largest possible number of children such a desire is currently being selected for as our other traits that increase our propensity to reproduce cultural adaptation.