NSP has much questionable content, but bigotry and racism is not a topic that is tolerated there, despite a claim by another board that used that mode of attack to try to have it closed down.
Feel free to leave.
You knew exactly what you were doing by starting that thread.
NSC was closed down a few years ago after (wrongly) being associated with a race related issue, and you were being deliberately provocative by starting something that was in a similar vein.