In the hydrogen sulfide upwell scenario, the survival of humanity in any quantity seems unlikely. I'm just a layman, hopefully experts can tell me why this won'

In the hydrogen sulfide upwell scenario, the survival of humanity in any quantity seems unlikely. I'm just a layman, hopefully experts can tell me why this won't happen: https://en.wikipedia.org/wiki/Permian%E2%80%93Triassic_extinction_event#Hydrogen_sulfide_emissions https://en.wikipedia.org/wiki/Permian%E2%80%93Triassic_extin... >The Permian–Triassic extinction event, also known as the End-Permian Extinction and colloquially as the Great Dying, formed the boundary between the Permian and Triassic geologic periods, as well as between the Paleozoic and Mesozoic eras, approximately 251.9 million years ago. It is the Earth's most severe known extinction event, with the extinction of 57% of biological families, 83% of genera, 81% of marine species and 70% of terrestrial vertebrate species. >Possible causes supported by strong evidence appear to describe a sequence of catastrophes, each worse than the last: the Siberian Traps eruptions were bad enough alone, but because they occurred near coal beds and the continental shelf, they also triggered very large releases of carbon dioxide and methane. The resultant global warming may have caused perhaps the most severe anoxic event in the oceans' history: according to this theory, the oceans became so anoxic, anaerobic sulfur-reducing organisms dominated the chemistry of the oceans and caused massive emissions of toxic hydrogen sulfide. According to this hypothesis which is well-supported by the archaeological evidence, it took Earth's atmosphere between hundreds of thousands to millions of years to return to conditions capable of supporting much life. That's a long time for biodomes, bunkers, and orbital stations not to break in irreparable ways.