Facebook publishes its community standards:

Hate speech defined as “a direct attack on people based on what we call protected characteristics — race, ethnicity, national origin, religious affiliation, sexual orientation, sex, gender, gender identity and serious disability or disease.”

The goal of its community standards “is to encourage expression and create a safe environment.”

Facebook says “we remove content, disable accounts and work with law enforcement when we believe there is a genuine risk of physical harm or direct threats to public safety.”