Since it is okay for to have black organizations, is it okay to have white organizations?

Since it is okay for to have black organizations, is it okay to have white organizations?
Some people may find my question offensive. In fact, some may say the question is racist. Nevertheless, the following are some black organization and there are no similar white organizations.

The National Association for the Advancement of Colored People (NAACP)

Congressional Black Caucus

National Black Caucus of State Legislators

National Black Catholic Clergy Caucus
Since it is okay for to have black organizations, is it okay to have white organizations?
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