I am all good for debate and argument about any legitimate subject of concern. I would never shut someone down simply because I couldn't handle their proofs. I would take their proofs and apply them to what I know so that my knowledge and wisdom base improves. I want to learn even if that learning goes against what I think I already know. But I will not debate or argue irrationality in the form of personal attacks or destructive intent. Some folks feel that all speech, whether rational or not should be allowed, I feel the same way but I don't have to listen to it when it does nothing to improve our world or make any kind of logical sense.
So I will continue to let people off my page who come out with statements that inflict harm or make no sense to the process of learning. I will exercise my right to not listen where listening is a detriment and not a positive. They can still speak their speech but I won't be around to listen. It is a good trade off. Having the right to speak while also having the right to listen, or not.