This video basically goes into what was behind the hit-piece extravaganza on Milo. Apparently there was 250K worth of research by some pro-McMuffin group that conned it's money out of DNC voters (scamPAC) that drove this from an obscure site called "The Reagan Battalion". Seems this group is hoping to cause some kind of Republican civil war to kick off and burn their own party in the 2018 election cycle based on the tweet from 4chan...take that for what it's worth (also, perhaps I should donate to these people since I think the RNC falling to pieces could only lead to good things.) The post was 100% correct on the Milo thing, but it's still an anon source.
Also, Sargon goes into how many of the people behind the Pewdiepie hit piece extravaganza are many of the same fucks that brought you the bitchface side of Gamergate.