If that's the case, why many are still losing their money investing with the Altcoins?
Let's stop that thinking about making quick profit with cryptocurrency because it's not easy at all, not unless luck always on your side which I think it's not possible too. Investing with the altcoins always bear a big risk, and that quick profit is not ideal with your risky investment, that can be consider as gambling actually. Analyze the trend, and invest with enough time and analysis you can do better if you will make your time frame longer.
Altcoins are indeed risky and no one can say that it's easy earning quick profit from altcoins. However, someone who understands the market well and knows how to trade properly, and takes action after careful consideration can make things work for themselves.
You can't get into altcoins without having enough knowledge about the market and its movements and expect that you will get some quick profit because you will most likely get yourself burned. People say that altcoins are good for quick profit only because they are more volatile than Bitcoin in short term, but this doesn't mean there is no risk in it at all.