For example a photography group of about 30 active members who are diverse.

One African-American member told the group’s organizers about the white supremacist member and he wants them to tell the whole group about it especially the other members who are minorities but the organizers refused since the WS haven’t done or said anything about his beliefs toward any of the members.

The African-American member strongly believes that the whole group should know, most critically the other African-American members. What do you think?