So Nazis are on the moon but the moon landing was real? I don't think those two work together. Nazis might have escaped to inner Earth via Antarctica (probably not, but possible)

I think the moon landing footage was likely staged, but still lean towards it being probable that we made it to the moon. I think they knew some of what they would find, and thus chose to air a fiction in order to prevent the public from becoming aware of our neighbors.

It's not Nazis on the moon though... It's aliens. Psychic aliens, in fact, according to Project Stargate's top remote viewer.

Giants built Stonehenge. Bronze age giants who worshipped light and performed human sacrifice. Whether or not they were aliens or the children of aliens is debatable though.

I've never dug too deep into Bigfoot, but it's likely aliens or inner earth escapees (the cave systems), if it's not a hoax. Yetis have been a part of Tibetan inner earth lore for ages.

Diana was put down by the royals, and Monroe was definitely killed by the intel community.

I think you have the rest of them correct for the most part.