An unrelated market is an oxymoron. You could come to my house and put a gun to my head, but that's not a consensual trade. That's just thuggery; the point of a market is that both sides benefit from trade.
For markets to exist, property rights also need to be respected.
The gun was an analogy and the comment satire, but the thuggery is real and the weapon is money.
For markets to exist they indeed need to be regulated and when they aren't you get something other than a market, you get thuggery.