Legal Question in Employment Law in California

EDD will require you prove 'justifiable' quit, and the burden of proof will be high. It's your risk to take. You'd be better off finding a new job before quitting.

The general rule is that an employee who quits their job is not eligible for unemployment benefits. An exception to this rule is if you can prove that the working conditions were so intolerable that no reasonable person would continue to work in the environment you were subjected to. But it will take something more than your statement that you had a bully boss. You must be able to convince the EDD that you did everything a person can do to preserve the working relationship, including making a formal complaint to human resources, regarding specific unreasonable abuses, and they willing unwilling or unable to help you. It would also help if you had medical confirmation of any adverse health issues your job was causing you. Everything should be documented because the burden of proving you quit with good cause will be on you.