Nobody holds 20% of Bitcoin, and early BTC whales have been selling to make their profits so we're getting less concentrated[1]. It helps that BTC has taken a decade to rise to this value with plenty of selling and redistribution along the way. I don't see your point but perhaps you don't mind sharing more :) I don't disagree that concentration is a problem but the existing system has enough concentration already. I don't want states printing away to glory, and bitcoin can't be printed so that's a HUGE improvement
[1]: https://ecommerceinstitut.de/bitcoin-wealth-is-becoming-more....