It's not a religion. It (climate change) is evidence-based science.

I agree that some activists may be overly zealous (when is that not the case about any issue?). But there was a sweet spot when we could have made a difference, and so it sort of was "hair on fire". It's too late now. Enough energy is built into the system that we're headed for some nasty climate over the next century or two (at the minimum). We're already seeing the effects in the form of more powerful storms (e.g. where we used to get maybe one CAT5 storm per year with some years not getting any, now we get at least one per year). Sea level rise is mandating moving some infrastructure inland (e.g. the Navy has been busy with that for the past decade, at least, because they still need to maintain operational readiness and don't have the luxury of denial of reality).

As for hubris, it really isn't. We have nearly 8B people on this planet. That's a lot. We burn fossil fuels the emit greenhouse gases by the gigaton. The planet is huge, but it's not THAT huge. We are affecting it. Now I do agree that we won't "destroy the earth". At worst, we won't survive, but the Earth will recover eventually and go on. Human history is but a blink in the 4.2B year history of the Earth. Earth will be fine. We just may not be here to see it.