There will always be survivors of pandemics. There will always be survivors of climate change, dead seas, and rogue AI. We can and will adapt if necessary. These threats are only possibilities, not sure things. More than any other species.....we will adapt and survive. No matter what happens here.
But we will not adapt and survive a planet killing collision. The real danger from extinction comes from space. The pitiful thing about it, is that we have the tech to detect and mitigate such an event. But the most educated are the most ignorant and nothing will be done. They are occupied with meaningless concerns, compared to the actual threat.
Educated ignorance will be our demise.