Many people I've met through environmental activism agree with you and have chosen not to have children. However, I think that giving up meat is a lot easier f

Many people I've met through environmental activism agree with you and have chosen not to have children. However, I think that giving up meat is a lot easier for people than not having children (reproducing is a pretty strong biological imperative). It also has the possibility to amplify your impact by encouraging those around you to make the same switch - that way you can impact many many lives. Interesting that you find it taboo - talking about "population control" is definitely taboo in my opinion because it sounds like eugenics or forced sterilisation etc etc, but I've never heard people respond badly to personal choices to not have children.