Shouldn't political action be first on the list? I wish I had the image handy, but it was something like this: https://images.squarespace-cdn.com/content/v1/5eda91260bbb7e...
In fact, having too many children appears to be the single most destructive thing a person can to do to the environment.
Political action is much more wishy-washy and hand wavey. Did you do enough of it? What impact did it have? Sure if you could take political action that fixes the whole mess do that first. But understand that's not likely at all.