Maybe if we hadn't criminalized homosexuality in the past, nature would have avoided the overpopulation crisis that is now upon us.
What evidence is there that the planet is overpopulated? We pay farmers to not grow food. Even then, developed countries throw away more food than the poor countries consume. 95% of the land area in the US is undeveloped. You could take the entire population of the world and move them to the state of Texas and the population density would be the same as it is in New York City.
The world is not overpopulated. In fact, the reverse is true in many countries that depend on a greater share of government to care for society than we do here. China, Japan, and much of Europe is facing crisis due to lagging birth rates.