Unions primarily benefit the weakest workers, and in places like SV, usually the top workers already are getting fat plates and others are pushing hard to get there.
Think of it like a football club holding a vote to flatten player pay. The benchwarmers will be falling over themselves to unionize, and the top players will be looking where to move too.
This is why union efforts fail, which many find perplexing. The most valuable players get better deals negotiating without a union.
There is no reason pay has to be flat with a union. The highest paid members of MLBPA or SAG-AFTRA are paid 1,000x what the lowest paid members are.
What are you talking about? Unions don't mandate equal pay for all members.
https://en.wikipedia.org/wiki/NFL_Players_Association
https://en.wikipedia.org/wiki/National_Basketball_Players_As...
https://en.wikipedia.org/wiki/Major_League_Baseball_Players_...
https://en.wikipedia.org/wiki/Screen_Actors_Guild
Aren't all of these industries where the top workers get fat plates and others are pushing hard to get there?