I advise people to watch Heaven's Gate documentary on HBO about the UFO space cult that started in the 70s and had unflappable believers in it. They all happily committed mass suicide in the end. It is a required viewing to understand Trumpism. They bring in several experts, historians and scholars including a Cult depeogramming expert who has been in the business since the 70s and has written books about it. There's lot of informative things in the documentary but one thing the expert says is that you cannot convince these people by argument or debate, unfortunately. Or even facts. The loyalty is at an emotional level, not rational. So rational logic will not work. Instead he said something to the effect of deprogramming taking months, if not years to come into effect. And that too, through their trusted confidants only. It is a very, very difficult process. So yeah unfortunately no video will work on them, especially made by someone that they're brainwashed to not trust.