Huddle House review: gender discrimination against naacp member

I have a member (Ronald Billings) that has recently been hired by the Huddle House in Waynesville, NC for the second time. The first time he left employment of the business was done with a proper notice. Ronald is gay black male and the hiring manager was well aware of his sexuality when he was hired.
Ronald was rehired 11/18/18. On 11/21/2018 he worked with an employee that had been there before made no secret of her distaste for homosexuality but there had been no problems.
On this particular afternoon the female employee made several comments to her "regular" customer concerning Ronalds sexuality. He overheard her but decided to let it go until one of his customers that overheard the comments mentioned it to him.
At the end of his shift Ronald quietly and politely stated his concern to this employee and was blown off as if he were making this up. She in turn ran to the phone and called the manager to defend herself before he was notified.
Ronald finished his shift, left and called the manager simply to request not to have to work with this particular employee again.
On 11/23/2018 Ronald received notice of termination due to a "corporate complaint".
In speaking with other employees I was told that if there has been a complaint lodged it was from a family member of the for-mentioned employee and not a customer.
The bottom line is that Ronald has been terminated because of the homophobia of one other employee; possibly a shift manager and we do intend to pursue this discrimination claim unless there can be a formal and satisfactorily explanation granted to Ronald.
Waynesville is a very rural area where there are racism and homophobia are an underlying problem but the fact that The Huddle House is a great franchise with a diverse customer base this situation is shocking, appalling and beyond words.
It has to be addressed.