> 99.9% of species are already extinct, the fossil record is huge. I get that people don't like change, but species going extinct doesn't really move the needle much. That is what they do.

Ehhhhh this argument is hopeful at best. The problem is we're changing the temp faster than base keystone species' evolution can adapt.

Without them it's super super unpredictable what'll actually happen.

The worry being mass extinction because we lost plankton or similar. Huge amounts of oxygen production and co2 capacity disappears rapidly with that.