I think it is harder than we think, at least for the goals that Europe wants: https://www.youtube.com/watch?v=7OpM_zKGE4o
The caveat about population control, is different than how we, humans, do with all other wild-life on planet earth, we cannot reduce the available food and habitat to lower the carrying capacity, compensate for the missing predators by killing individuals in the population, or slow the population's ability to reproduce..
We have to come up with a ethic solution. But people cannot put 3-5 kids or more on earth and don't have the means to raise them accordingly.