I can't think of a good argument against it, though I agree he is insane.
Imagine a society where everyone is born with either one or two arms. Most people have one arm, but some people have two arms, and this naturally confers a ton of advantages over the one armed people. What's worse, most if not all of the highest levels of government, military, and law enforcement are two armed people, while one armed people are basically at the whims of the two armed people.
As long as the two armed people are nice and manage themselves, everything is alright, but what happens when they don't? What will the one armed people do? It's not like the two armed people will want to pass legislation that limits their own powers, what's to stop them from enslaving the one armed people?
Now also imagine if there was some way to take away that "extra" arm from someone without endangering that person's life. You must admit that, next to giving all the one armed people an extra arm, this is the best possible solution to the problem of inequality.
PR move is PR, doesn't really diminish its meaning and purpose whether it's true or not.