Rather than bet, you could try traveling to some of these places. I’ve been to Vietnam and Cuba. In neither country could you find anything close to child prostitution (I don’t think it’s possible to observe organ sales in the same way). In part I believe this is due to the relatively flat distribution of income and wealth. Neither nation is as rich as their former colonizer, but they also lack the widespread desperate poverty which would incentivize these transactions. Both states also invested heavily in controlling inflows of capital and currency from tourists and their immigrant diaspora which would permit concentrations of wealth in the hands of someone who would purchase such things.

I did observe rampant child or underage prostitution in Cambodia, Thailand, Haiti, the Dominican Republic of course, if the American judiciary is to be believed, among certain American billionaires, politicians, and members of the British royal family.

Returning to the fundamentals of the debate I’d enjoy seeing some justification For your assertion that market mechanisms are unique to capitalist economies considering they predate them considerably.

Capital concentration and investment is a fundamental economic activity. No moderately complicated society can function without it. Capitalism is just one way to organize this activity. There’s a case to be made for it that relies on empiricism rather than mere distortion and ignorance.