The difference between the two is that gambling is won by luck, while in trading, trades are made by watching the market, from which we can earn profit, besides losing is the same in both because the more leverage is kept, the faster the loss will be and we will lose in the same way.
The traders who trade with very high leverage aren't actually trading but they are somehow gambling with the crypto assets. A good trader who knows trading well tries to avoid any high leverage at any cost because leverage can be the number one enemy of ones capital as the high leverage carries huge risk of liquidation that is why good traders avoid such type of unnecessary risks.
Only those traders who want to get rich quick trades with high leverage, the ones who understand the market well try their best to avoid leverages over 2x to 3x at any cost. So the ones who trade with very high leverage aren't actually traders but gamblers who use trading platforms.