It’s silly to compare tech unions to sports teams. There is usually only one major league in a country, and the team that signs you owns you like property. You do what the coach says or you sit on the bench until your contract expires and then don’t get re-signed. It’s not like tech, where if your Google manager so much as gives you a dirty look you can just walk over to facebook and have a new job by Monday. This alone is far more powerful than anything a union can provide.