What's your point? That we should collectively bury our heads in the sand and keep living the two-kids-and-a-minivan suburb life right up until the end?
If you have Choice A which actively makes things worse and Choice B which doesn't make things worse then Choice A is the "good" choice as it is the one that causes the least harm. Driving a 50cc scooter instead of a car doesn't actively help carbon emissions, in fact it still puts out carbon, but it any reasonable person would say that switching from a car to a scooter helps the environment. Splitting hairs over whether doing less harm counts as "helping" isn't very productive.
Have kids and don't do that. If the "good guys" aren't having kids then we'll be fucked. I assure you the "bad guys" are having loads of kids and they don't care one iota about climate change....