Earlier quoted context omitted.
imgabe implied it's difficult for a company to fire someone. I'm responding that it's trivially easy for a company to make your life a living hell, and make you want to quit.
Yes and constructive dismissal is a legal concept enabling an employee who experienced something like that to sue and receive compensation for unfair dismissal. Companies generally don't like to be sued and don't put themselves in positions where they could be sued.
Hopefully the California legislature passes AB 465 and bans pre-dispute arbitration clauses.
Companies need to fear being sued in the courts if they misbehave, and should not be able to keep the disputes private and out of the court records.