I see. Thank you for the additional information, Ahmed.
While the law does protect employees 40 years and older from discrimination by employers, it does not protect younger employees unfortunately since historically employers have not discriminated against younger employees. So there would not typically be grounds to pursue legal recourse against the employer because they used profanity with you I'm afraid.
However, an employer in CA is REQUIRED to provide lunch breach for full-time employees typically and the state strictly regulates such breaks by penalizing employers who violate the law.
In addition, it would typically be a separate violation of law for an employer to fail to pay an hourly worker for all hours they actually worked, including what would otherwise be the employee's lunch break.
Your recourse would typically involve filing a wage claim with the state labor board for investigation and collection of back wages owed. Employers are prohibited by law from retaliating against employees for taking such action, but if you have reason to believe your employer may retaliate, then it would be best to retain a local employment law attorney to represent you.
Here is a link that sets out the law on lunch breaks:
Here is a link to file a wage claim with the labor board:
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