Now my question is futures trade is actually gambling? Or how did he lose all his dollars?
Futures trading is just like gambling.Just as a gambler bets in gambling,If his guess is correct, he gets a good profit,but if it goes wrong, he loses all his money.Thus, in future trading people spend money on long trade or short trade, if the market goes to their estimates, they make good profit,but if their guess is wrong and the market goes in the opposite direction, they lose a good amount of money.
Especially new traders who don't even know about spot trading. They often start future trading with the lure of high profits and quick profits. While Future Trading requires a lot of experience. Most experienced people in future trading also do a lot of harm,While it is very dangerous for the new trader. You are mentioning the X, which is the only role in the Future Trading. Probably he has taken a futures trader with more leverage, which has lost all his capital.