Actually I do know who needs to hear it - people like this: https://twitter.com/kazweida/status/1521312672465051649
I know it's not the most important thing right now, but since the Roe v Wade news there have been a bunch of tweets encouraging men to get vasectomies, and/or trying to analogize between female birth control methods and vasectomies, that include some assertion to the effect of "you can just get it reversed later when you're ready for kids".
This is not true. Yes, the vasectomy reversal procedure exists but its success rate is not very good (70% at best), and the likelihood of restoring fertility only goes down as more time passes since the initial vasectomy. This is why urologists advise their patients to consider a vasectomy to be a permanent procedure.
I won't say much more about it, other than it would be nice if more forms of male birth control (e.g. Vasalgel) entered the market soon.
on the other hand, we will need a large pool of young people to serve in the American Red Army and to work on massive environmental reconstruction projects. could probably get most of these people through immigration/climate refugees but I don't think anti-natalism is necessary. There's not too many people, the west just uses too many fucking resources per person.