I also believe that day trading is much more demanding on skills than playing many gambling games. I wrote about this earlier. However, reading the topic we can see that a large number of people put an equal sign between day trading and gambling. I think that this is primarily a matter of luck. A lot depends on luck in both trading and gambling. That's the reason.
I agree with you. Day trading will need to have skills, but gambling also needs to have skills for some gambling games. We might agree that if we trade doesn't use analysis, that will be the same as playing gambling base on luck because we only count on the luck itself to make money or profit. Many traders still use this way to make money, and they predicted that the price would be on what they want, so they place the order and wait for a while. But if their order is not filled, they will not make a profit, but they still have the initial money, and that is different from gambling.
Technical analysis works well in the stock and currency markets. In the crypto market, I have seen enough cases when technical analysis made serious mistakes. I may have applied it incorrectly and these were my mistakes. However, it is true that gradually the more you trade you learn to do it better and better. And for a long period of time, a skilled trader will trade with profit.
When playing dice, you can't influence the result in any way with your ability, you only need luck.