Regardless of the legitimacy of the trades, those first statistics listed are unreal. It's Pareto's Principle to the EXTREME. The reality that a few banks account for over $1 trillion per day in Interbank forex turnover is astounding. Especially when you consider that they instantly create that money from nothing! It's literally no risk to them, because the reserve system of international banking is like energy; it can never be destroyed or created only transferred. The real owners are in London and they will forever control the financial world.
Those are authetic statistics too, as they are directly from the
Bank for International Settlements, literally the banker of the Federal Reserve and all central banks (immune from any jurisdiction).