I partly agree with you. It's foolish to buy BTC now. But it was a good investment even a few months ago. I jumped up dramatically and now stays between $16-18k. So now it's wiser to invest in altcoins like Ethereum and others. They cost less, so more people can afford it, also the growth rate is better than BTC's.
I disagrre, because in our world there are luck and bad luck that exist. In terms of investing bitcoin you have to make a right decision to become succesfull. You need to think before you invest. Coduct a wise strategy to help you become success in the end.