I don't really care about what outperformed bitcoin because many on the list are coins or tokens that I have never even heard about. They might have outperformed bitcoin but I am sure that in the long run the half of what is on the list wouldn't even be remembered or valued highly by many people. I don't think bitcoin is a reasonable comparison because it is best to look at the larger picture when it comes to bitcoin.
I'm not talking about big investors, I'm talking about small investors because I'm not a big investor myself. People who invest in altcoins have more profit than Bitcoin because the price of altcoins is lower than Bitcoin. So when you have less of an investment and you can buy the whole of the smaller item instead of buying part of the larger item, you obviously have more leverage in that, but you're talking about a longer period. For investment, there is no doubt that if you can wait for a long time, there is no better choice for you than Bitcoin.
Bitcoin is more trusted, it's a long-term coin, and Bitcoin has always benefited its users. In the years to come, people who don't have a lot of capital and can't hold Bitcoin for a long period can get faster and more profitable if they trade on altcoins than on Bitcoin. So the moral is, if you have a small capital, and want quick profits, trade altcoins but make sure you trade good ones after doing enough research, but if you have good capital, and you can hold for a long term, you should go for Bitcoin without a second thought.