We're currently undergoing the largest mass extinction event that will easily rank in the top 6 of life on this planet and could possibly compete with the end-permian. What makes you think we could possibly survive? Because we're the cause? Plenty of species in the past that have caused extinction events also perished.

It seems far more questionable to assume we won't risk extinction in the geological near term. The parent is downvoted more out of existential fear rather than an honest assessment of the situation.