It looks like a microscopic black hole passed through the end of your sentence. But you are still correct.

Barring total societal collapse, humans could probably cobble together some kind of interstellar life raft in the space of a thousand years. Would they be able to evacuate most of the planet to a safe destination? Hard to say for sure. With current technology it would be very unlikely. But at least they would know they needed to get to work on it.

For all we know, there's a deadly asteroid already headed toward us from a blind spot. And the Earth won't support life forever. Distant black holes or not, getting a toehold outside the solar system is a vital step if we want our lineage to continue.