I don't even understand a single thing from your post tbh.
How can you say that in trading everything is control of whales and not us ? Trading is far safer than gambling.
You invest in gambling and the very next second you can lose all of your money. In trading even if you are at loss, holding the coins can make you recover the loss. Also if you are professional trader you will never be in a loss.
Trading is indeed controlled by some whales, but it's only for some coin/token which got pump & dump easily.
Invest and gamble your money in gambling site are different, while you invest, you are likely will earn some profit because house will be win in the end. But while you gamble, it's 50:50 you can win a lot or lose all your money. Holding a coin / token for a long time which basically only shit token/coin will make your investment become worse
Also if you are professional trader you will never be in a loss.
No, even a professional trader can lose too