This showed up while searching on YouTube. I couldn't finish listening.

[Warpy]

11. It's my understanding that the ice melting in Antarctica

is not generally melting over the land mass, which remains quite cold. The huge ice shelf glaciers are what are melting, cracking, and breaking off with increasing frequency.

And if that guy has pictures, why weren't they shown? POIDH, buddy, or you sound like a Qpublican.

The quarry for the blocks has been known for a long time. Experimental archaeology has duplicated the transport barges. There's an apocryphal story about an experimental archaeologist who moved one of the blocks "by himself" uphill using a base of silty mud. While I think he most likely had the 6 or so guys the Egyptians used, the silty mud makes sense, it's why potters call it "slip."

As for its construction, Pierre Houdin has probably got the closest to that, here is an update with a link to the original theory: