At least they have alternate ways of selling ads, though. For example there has been a lot of talk about how their search business ads are threatened by LLMs that answer questions directly instead of giving search results that include paid placements, etc. But even if that happened, it likely wouldn’t affect YouTube ad revenues much.
Why couldn’t they have prevented the systemic collapse simply by bailing out the individual homeowners? If they had gotten bailed out, so would have their banks.