In our city there's a flea market in a bad part of town where the parking lot has a metal sliding gate and there's barbed wire on the roof and all the windows have bars (obviously, given the rest of that) and there are live vendors in there hawking their goods at folding tables, with about the proportion (... high) of stolen and counterfeit goods you'd expect.

That's Amazon. Ebay's like an ordinary, mediocre antique mall. You might buy something that's crap or was misrepresented, or you might overpay, but it's not an entire business basically dedicated to crime.