Extrapolating that out environmentally concerned people should have as many children as possible and outbreed those not concerned about greenhouse emissions?
Such a statement seems to assume that the mind is an immutable object only created in childhood.
While it certainly causes cognitive dissonance for some, an SUV driving redneck carnivore with no children has created far less emissions than a public transport using vegan environmentalist with 2 kids.
Mostly I’m just saying that, given that most aspects of personality are 30-80% heritable, I think people should really think twice before contributing to a future with less long-term thinkers in it.