And I see that BTC is just only for long-term investment, not really cool for trading. Because in investment, we don't need to have a very volatile coin but what we need is a project that will certainly grow and increase its price in the long run, and this is how we know about Bitcoin. But in trading, we need to consider how volatile it was and seems to see that Bitcoin doesn't have that kind of behavior now.
Plenty of people turned thousands of dollars into millions of dollars within a few months only by just doing high leverage during bull run, that should be considered a good deal and I hope that many people start to learn that easily as well. I personally feel like we will have plenty of people get rich using leverage during next bull run as well.
It is absurd to say that bitcoin trading is not more profitable than altcoins. As you said, if you want to make a lot of money and take risks, then using leverage will fulfill that need. I seriously doubt it when someone says they can make a profit from trading altcoins but can't make a profit from trading bitcoin.
And I don't think trading will be able to make more money than investing. I have not seen anyone who can become a millionaire or a billionaire through trading, mostly from investing. You can make high profits from trading, but there is no guarantee that you will always win and never lose. But with investment and holding that becomes easier.