A lot of these younger leftists are authoritarian and anti-intellectual, and react with hostility to any disagreement with their beliefs. This was a problem on Reddit and it's a problem on Lemmy. I don't know what happened to the left, but when I was young they were the intellectual and rational ones. These days, anything other than "fully automated luxury communism" is ecofascism I suppose. Yes, they do take the view that an accurate assessment of our predicament makes you a terrible person.
Also blaming white people for this is inappropriate as there is basically no part of the world today that's on a sustainable trajectory in the scenario of energy descent.
Used to get about 200+ pages of search results. Now it's about 30 actual results and half of them are fake / malicious / useless. Google as a company was once an innovator, but is now mostly a barrier to any kind of progress or improvement.