What claim about how the market works is silly exactly and why?
My claim was that 1 person owns the 1 major US market making business AND a hedge fund. Facts: they can control the price (naked shorting + strategic FTDs) and trade on it. Even if they can't/don't control the price, they can still front run the entire market. And even if they don't do that bEcaUsE iT's iLliGaL they legally (not ethically) do it through PFOF from Robin Hood among others.
They do all of that and way more. Just look up the continuous massive FINRA and SEC violations and the (tiny) fines they pay for it.
But I'm sure all is fine and dandy. I find it mind blowing why anybody would defend the biggest crook since Madoff.