How To Respond To Sedevacantists?

[ToJesusMyHeart]

If this would be better in the Open Mic area, my apologies.

I had a sedevacantist say this to me and I wanted to know how to respond:

"If you feel that a "Mass" created by Protestant ministers and Freemasons (absolute fact--go check it out for yourself) is "Catholic", nothing anyone here can say will help you. There is NO 'holiness' in Vatican 2. The pope himself (Paul 6) said, very clearly, that "the smoke of Satan has entered the sanctuary", and he ought to know, because he let it in! He also said that he was DELIBERATELY creating a Mass that was in line with the Protestant service--a move directly FORBIDDEN by all previous popes and councils! Beware of where you place your loyalty. Just because YOU behave correctly during Mass does not make the church you attend a valid one. We are NOT saying these things to anger you, but to instruct, and try to correct erroneous beliefs, because we care."

[CatherineM]

People will sometimes believe the strangest things. That stuff is as true as saying we do human sacrifice or the Pope is a woman. I find debating someone who doesn't want to be confused by the truth to be a serious waste of time. Maybe someone in open mic would have a better way to deal with them than to ignore them.