One thing to keep in mind about grand-scale destruction is it has tended in the past not to be recorded very thoroughly, because the people going through it had other shit to deal with at the time.
Take, for example, the varying legends of a massive flood that wiped out somewhere between "a whole lot" and "all but two" humans on the planet. In its most generic form, the devastating flood story almost certainly has a level of truth to it, because it shows up in different forms in different cultures all around the same point in (very poorly-recorded) history. Meanwhile, forensic genealogy (i.e. mitochondrial DNA tracking) has proven that humans nearly went extinct
150,000 years ago, and again
70,000 years ago. We can even prove that as of
1.2 million years ago, we had either been heavily culled in an unknown event, or else spent the majority of our early development as both a rare and far-flung creature--an endangered species that somehow managed to migrate a hell of a lot.
Statistically speaking, you only have to go back
roughly 5,000 years before every single one of us is down to a single common ancestor, which means we could have had non-apocalyptic but nonetheless really-fucking-awful levels of death countless times in our past, and would still only need a couple thousand years to re-establish ourselves.
We're sturdy, and resourceful, and as a species I think we'll survive whatever comes next--but near-extinction events are practically an inevitability. It's also probably not something we can do much about anyway. The Earth abides.