I'm not agree. First of all, it's not really wise to say that all crypto for rich now. There is a lot of cheap altcoins. And some examples that's not cheap but has really low fees. And you don't have to buy whole BTC. You can buy fractions of it especially on the dips.
I agree with your opinion. We are not required to invest or buy Bitcoin. There are coins with low value but also profitable. If you know how to invest, small investments also make you richer. But there is one thing you should admit if you want to stand on the crypto market, you have to be economically strong. Accept the risks if any.