Ten years ago I did an interview with the president of a medium-sized Silicon Valley firm.
After a good discussion of climate change, he said, "Doug, would you rather we continue 15 more years and then collapse or try to change now and collapse now?"
This could be said by many, especially in the professional class. It might be useful to divide the population into two parts. The first part is for those who seriously want to do something about climate change, and the second part is for those who would rather continue the quality of life they have, even if only for a few more years but meanwhile don't try to change anything because it will spoil it.
Martha Nussbaum writes in her book, the Fragility of Goodness, that it's hard to be a good person when you are surrounded by people of bad character. The decision to let humanity fail in order to preserve a few years of bland consumerism seems to fit.