OP's claim is quite bold and they did not offer evidence. I would describe it as 'unsubstantiated'. To correctly say it is untrue, you must show another strate

OP's claim is quite bold and they did not offer evidence. I would describe it as 'unsubstantiated'. To correctly say it is untrue, you must show another strategy actually converted at least hundreds of KKK members (perhaps more, as it's possible people beyond just Daryl got results from this strategy).