I see antifa as useful idiots for whomever it is employing/influencing them.
The elite? Not sure. What is their end goal? How does it benefit them? Mindless consumers benefits the elite. The status quo is stability, the ability to continue profits and stockmarkets. Disruption in the name of power? Over what? A socialist country? Like the former Soviet Union? Venezuela? Ok, China maybe.
China or Russia trying to undermind the US from within? Or at least weaken to the point we are no longer a global influence? Maybe.
Too much conspiracy for me.