Silicon Valley is composed of humans with the same drives, limitations, etc. as everyone else. The fact that they think they're better than the rest of humanity doesn't mean they are. It just means they're more self delusional. Self delusion tends to make you repeat history more rather than less.
You're still making the assumption that labor unions are inherently limited by human nature, and not worth attempting a v2. That goes against the SV ethos of tinkering with existing systems and reinventing them.
Labor unions are inherently limited by human nature because they’re made up of humans, not cats. They’re also limited by economic facts which would be the same if they were made of lizard people. That doesn’t mean it’s not worth attempting version 2 but there are very real constraints on what’s possible.