This isn't true for "all" altcoins, not all of them are like that, some of them are actually decent, like for example take the biggest one in example ETH, that is a big one right? So you do not get in and out quickly there and that is why I believe that we shouldn't really be focusing on anything like that, you could buy it and hold it for long term as well.

The method of getting and out quickly is for shitcoins and if you do that then you could probably make some profit with it and that could be the way to go and I agree that we could make money only with that method, but that is not something I would suggest to anyone. This is why the best way to move forward would be just getting greater return in the end for all of this, it couldn't be really that bad at all.