Those companies are absolutely not paying out 1M/yr to the average engineer. Only a small handful of engineers make that much money.

Let's start with on-call, some companies ask to always be on-call to whatever extend the local law permits. No weekend for you.

That doesn’t happen at LinkedIn. I don’t totally understand what I would have to gain from a union when I feel like my employer treats me really well. The union feels like unneeded overhead

When the NBA pays its players tens of millions of dollars a year - seems hard to understand why an NBA player would need a union.

The NBA is an extreme outlier case where even the NBA wants there to be a union because any single player can have drastic negative repercussions.

Theres virtually no other business that yields so much revenue from only ~10 people (5 on court players and 5 bench players).

If Lebron decided to not show up to a bunch of games, this would have massive repercussions for the entire league & TV contracts.