The true value is $0. BTC is incredibly wasteful. ETH now no longer except acts as a front for other scams via "smart contracts" (more like "dumb contracts" as one bug in these contracts can cause a substantial negative impact and we can see many such cases). XRP is something that promises to be a solution to something, but again, to the ill or misinformed (like myself at the time), isn't: https://www.forbes.com/sites/francescoppola/2019/02/10/there-is-no-such-thing-as-dormant-funds-in-banking/?sh=501b83ca5aef.
Out of the top 10 cryptocurrencies, after over 10 years of operation: - 3 of them are stablecoins (Tether, BUSD, USDC), unaudited. And in the case of Tether highly correlated to BTC price and fined in the past of propping up crypto prices - 1 is a deliberate joke (DOGE) - 2 profess to solve the aforementioned problems you mentioned: ADA and XRP - 1 is a technical failure and has largely centralised ownership (SOL) - 1 is a complete waste of energy and has failed to take up adoption as a currency despite best efforts in El Salvador (BTC) - 1 was a complete waste of energy and acts as a front for ponzi schemes (ETH)
This is "the best" crypto has to offer?
The noises are there, loud and clear, no one can cry foul when the **** hits the fan.