I feel like this post is going to be interpreted very differently depending on what the audience is.
For left-of-centrists, this seems like a decent wake-up call. Stop being depressed about there being no solutions in your narrow overton window, and embrace the necessity that society adapts to reality.
For conservatives, "pessimism" is an odd phrase, but they'll be glad to hear you're warming up to signing up for lifeboat defense duty - maybe if you work hard you can get to be in it.
For realists, "abandon" is an worrisome phrase. It has always obviously been about both. Is this another excuse to keep consumption high?