Just curious about the above fallacious argument that keeps showing up?
It’s called Ad hominem tu quoque (“You are not pure enough to speak”) It’s an interesting logical fallacy. It feels “logical” but there’s no logic to it. You don’t have to withdraw from human civilization to comment on its consequences. It’s not even hypocritical. Most of the climate scientists or climate change activists who drive, fly or use modern technology were not involved in the grand social engineering decisions to build a transportation system or economy powered by fossil fuels. We are all fish swimming in the same sea and using the tools at hand to create a better system.