Doctors, police officers, and teachers are individuals hired to do a particular job. They have responsibilities at those jobs. If they cannot or do not want to

Doctors, police officers, and teachers are individuals hired to do a particular job. They have responsibilities at those jobs. If they cannot or do not want to do them, they are free to quit, switch careers, or face the consequences of their actions. Outside of that job, they are free to associate or not associate with anyone they choose. A grocery store is a private entity. Outside of banning someone for being a protected class, they are free to refuse service to anyone. Even if someone is a protected class, they still can be banned for valid reasons (i:e; stealing, threats, etc). Being a racist is not a protected class. Nor should it be. The grocery store has the right not to do business with them. Facebook and Google are private entities. They can refuse service for any reason (with some restrictions). They have no ethical obligation to give service to everyone. No one has any obligation to use Facebook or Google's services either. TL;DR: Outside of a few legal requirements, no one has any obligations to associate with anyone.