It looks like the majority of his focus is demonstrating how Ian's video was completely out of context, specifically focusing on the fact that Ian never mentioned once that CPS was called on him. He's showing how fucking vile and evil the people Ian's decided to align himself with are. He ends the video demonstrating Ian's hypocrisy in making a Content Cop on him after "discovering empathy" at age 32. As he's stabbing his friend of 10 years in the back during one of the most stressful periods of his life.
Ethan also reveals in this video that he and Hila were sent two human skulls (Ethan has footage of them, but blurred it) in the mail around the time of the CPS call, and they were interviewed by the FBI about it.
It looks like they had a show where they'd unbox fanmail. Hence the gloves and the greenscreen.