As much as I hated those things, I kind of wish they were still there because they brought up a lot of conversations! Though sadly, I think these days people are so nihilistic that they don't value their lives nor other lives, and do in fact believe in over population, and do strictly see through the filter of economic interests, and do not think of life as a gift to be cherished, yet at the same time claim to hold life and each other's happiness in high esteem while really just living for them selves. So as long as there are a growing number of soul-less individuals and the like, there will be those who favor what the monument said and have no problems about being heavily controlled and limited by a higher body of governance, even in regards to population control.