Black swan events aren't predictable by definition. They're usually events sufficiently rare that when they happen, it's the first time that category of event has been observed. This, we can't assess their likelihood since we have no real prior. So a market crash, plague, asteroid, etc. aren't black swan events. They just aren't rare enough. We've seen them. They have an annual probability. Hell, a COVID-like illness isn't even all that unlikely. A lethal fungal plague might be, since we've never seen such a thing in humans, although we've seen that in other mammals so it shouldn't come as a total shock.

As a better example, an AI apocalypse would be a black swan since we've never observed such an event and have no really great way of assessing its likelihood. Although we've some idea of that possibility.

To really get at the meat of it, consider the name. Black swans came as a surprise when Europeans visited Australia because a non-white swan had never before been observed. No one would even have thought to ask the question "what are the odds you find an all black swan in Australia?"