Remind you of anything...?
Yes, it does. There is plenty of evidence of wires and bubbles and space fakery. How people can deny that evidence is absurd.
More on topic, the witness testimonials of the Holocaust is evidence. When I looked into the controversy I found it intesting that the problem wasn't so much that people were calling the witnesses liars, but I have seen authors labled as Holocaust Deniers when they point out that it was not only the Jews that were prosecuted, or if they had any disagreement with the historical evidence of the numbers. Their Wikipedia pages then defaced with accusations of them being anti-Semitic and denyers of the Holocaust, defamement campaigns, and then calling for prosecution of that kind of speech. I actually believe the problem to be with those over-zealous defenders.
There has been a world-wide campaign to throw people in jail if they say anything that can be categorized as denying the Holocaust. Countries have those laws in the books. It is outrageous. Luckily, I think those people are starting to age and are not as motivated to continue their nonsense.