OK, I agree I'm not that informed about ER, probably I've only heard of some of their more misguided actions, maybe even overemphasized by their enemies.

...but their name and their most used description doesn't help either: first words you read are "climate change" and "biodiversity loss". No organization can focus on everything, and if they've chosen to focus on that, then from my pov. they're not focusing on what I care about most: engineering and sustaining environments (natural or artificial or hybrid...) that maximize HUMAN health & lifespan in economically sustainable ways.