This is a cold-hearted way to think about it. The countless people who will suffer are not the ones causing the problem. The problem is caused by the billionaires willing to sacrifice human life and the environment for profit. They actively sow climate skepticism and encourage defunding of climate research to protect their bottom line. When extreme weather events kill millions, those billionaires will be safe in their bunkers. We can’t just condemn millions or even billions to death without trying to do anything about it.
It's easier to blame climate change on a conspiracy theory around billionaires then it is to stop driving so much and reduce consumption.
Kings have always sacrificed the common folk for their own benefit. This is also the way of human society. The experience of our own current lifetimes is quite the exception.