I disagree. I think we can all agree that we don't need videos talking about how the "bad ideas" of slavery/child abuse/human trafficking/etc. are wonderful things. I think we are right to suppress them. You can make the same argument that allowing these videos validates that they must be telling the truth or YT wouldn't allow it. If all you are looking for is confirmation bias, it is all you will find. It sounds like you wife won't get a vaccine no matter what so let's not argue semantics about what will make her even less likely to get a vaccine.