Above all, Solana, Eth and Xrp are anything but dirty or why do you think banks and the big names of this world are betting on the technology and researching/working on it. Just look at my Eth partnerships in the deep dive
@Investingyoung who controls the supply of the coins? It may be that the chains make sense for use cases, but the underlying cryptos have zero to do with an investment in my view.