Your youtube video doesn't look any more convincing to me, just murkier and with much more interlacing. As far as the helmet thing it says the "helmet to torso engagement" has a bearing the lets the astronaut turn his head with "relative ease", it doesn't seem to indicate to me that it should allow the helmet to swivel around but rather it is designed so that the astronaut is free to move his head within the static helmet. Maybe I'm misinterpreting it.
Well, it's video. We could go all day back and forth as to what perhaps you
want to see versus what I
want to see. As for the helmet, I suppose up to interpretation. But it states that the torso engagement contains a '
rotating' bearing that lets the astronaut turn his head with "relative ease". Seems clear to me. And even if there is some perceived ambiguity, it seems disingenuous for the video author to state that it
definitely doesn't swivel as a main contention.
My larger point is that we see what we want to see. FE sees fake, I don't. Both biased. But when I saw this, I tried to park my bias aside. As yeah, it looked like a gumby video and if the Gemini helmets don't swivel as the video author claimed, then yeah, that's pretty fake. So I looked for original footage which I find to be different. And then found the docs pertaining to the Gemini suit and in there, it states that the helmet does, in fact, rotate.
Point being, before slapping images/videos up, remove your bias to the best of your ability and do some research first, even from the opposite point of view. It just seems like the right thing to do.