I'm sure such people exist, its just that there are probably more losers than winners in this net negative game.
Analogously, there are some people who have won a lot of money from casinos but the average gambler loses money because the house always wins. Miners are 'the house' for this analogy
mining rewards in the form of new supply is not the only way miners make money - they are the house because they take a cut of every transaction. admittedly I don't know the ratio, and I've always been puzzled by the end game - will fees continue to rise as the difficulty ratchets up such that the only incentive to mine is transaction fees? Anyway they can keep winning regardless of price volatility.
Analogously, there are some people who have won a lot of money from casinos but the average gambler loses money because the house always wins. Miners are 'the house' for this analogy