Ask HN: What would happen if a tech giant like Alphabet Inc decided to shutdown?

Have consolidated tech companies created a risk of single point of failure OR are they safe to be considered too big to fail?

What would be the consequence of it on the internet as we know it? Are we prepared?

When it's a company like Google you're talking about, it's just hard to imagine a day when platforms like YouTube or Gmail might be killed off.

Are there legal clauses that would prevent such a thing? Or does the corporation have complete freedom in such matters.