Regardless of whether you believe the employer will do the reasonable thing and settle with you, employers look at these matters quite differently, for a variety of reasons, and often won't without forcing you to sue them first. Plaintiff's lawyers must look at these cases as a business decision. They are very expensive to litigate, extremely time consuming, and unless there is a realistic prospect of a sizeable enough recovery to recoup the costs and fees incurred, you will have difficulty finding an attorney willing to handle this on a contingency basis. Apparently, it was the conclusion of the lawyers who have already reviewed your case, that it does not meet that criteria.
If you have not already done so, you should file a claim with the California Department of Fair Employment and Housing or the Equal Employment Opportunity Commission and ask them to investigate your case. If the investigation results in a finding in your favor, they could try to get a settlement from this employer or, in some cases, can file an action against it.