Thank you for the additional information, and for your clarification of your understanding of what is going on. It certainly raises the red flag of racism if it is happening only to you, and you are the only African American in your office.
I've been a licensed attorney for nearly 3 decades, and for two of those decades, I have handled employment discrimination law and litigated cases against employers. Your description of the situation seems to indicate that there may be discrimination going on based on your race.
Federal law prohibits harassment and discrimination in the workplace and if it does occur, you do have a legal remedy. If you have taken your concerns all the way to HR, and they have not remedied the situation, then your next step is to seek help outside the company.
Under Federal law, workplace harassment/discrimination is any unwelcome or unwanted conduct that denigrates or shows hostility or an aversion toward another person on the basis of any characteristic protected by law, which includes an individual's race, color, gender, ethnic or national origin, age, religion, disability, marital status, sexual orientation, gender identity, or other personal characteristic protected by law. A conduct is considered unwelcome if the employee did not solicit, instigate or provoke it, and the employee regards XXXXX XXXXX as undesirable or offensive.
You have every right to file a race discrimination complaint with the EEOC (Equal Employment Opportunity Commission). If your company has 15 or more employees, they are prohibited from discriminating against you. To file a complaint with the EEOC, contact the nearest Equal Employment Opportunity Commission field office. To be automatically connected with the nearest office, call(NNN) NNN-NNNN EEOC website: www.eeoc.gov
Federal law specifically prohibits discrimination, based upon the Ethnicity, Color, Religion, National Origin, Age, Sex or Disability of an individual, with regard to hiring, promotion and firing.
After you file the complaint, your employer will be prohibited from any retaliatory action against you. The EEOC will investigate your claim, and 180 days after the filing of the complaint you may ask for a "right to sue letter". The EEOC will issue you the letter which gives you the right to institute a private civil action against your employer and seek monetary damages.
You may reply back to me again, using the Reply to Expert link, if you have additional questions.
I wish you the best in your future,