Nature is biased and so are we to chase good genes to mate with. The depression and other negative emotions occurs due to the society's bad teachings and morality that we are supposed to be monogamous and other bulshit idea. The world is supposed to mate as much as possible to evolve and come to an ideal stage where its unknown planning for the future can take place. The population is supposed to increase exponentially and the bad genes who made up to that level should fight the other one and the population control happens with a war. Finally the good genes stays and and again the cycle starts. The good genes can then continue to evolve with new abilities and all of this continues. The TRP philosophy works but is not so ideal and spreading bad messages to the people that it's just female nature who is stopping you from success where as even men have same nature. We are all encoded with certain criteria where we are all biased towards something even if that thing didn't make sense morally.