They're styrofoam, obviously. The giants were just paid actors.  

 Pretty helpful those gods  

 Lasers and anti-grav devices. 

 Nephilim. 

 If I was a giant, I would most certainly take orders from people 1/10 of my size! 

 Not even ai knows how they cut them 

 seems legit 

 Lasers, sound and interference from longitudinal waves. Possibly hard reddening radiation. 

 Humm okay 

 Ah yes, I needed some nightmare fuel, I was about to run out. Thanks 😅 

 We still know very little of the past