The fact that there are no regulators to weed out the smaller players for the benefit of the Established ones, and then central banks to bail out their cronys when they blow up their economy and offer them Golden parachutes while the rest of the masses deal with worse living conditions and a labour Market only seen (until recently) snc ethe Great Depression for starters?

The fact that front-running isn't an established Raison D'être embedded deeply into its culture and system that diminishes any value purported from its supposedly 'open markets' is another.

I can go on, but if you can't see that then you have a very superficial understanding of either systems and are require far more education than I can avail to you.

I'm not saying this to be snarky, but its clear you're simply not paying enough attention if you have to ask.