Wasabi is working, Joinstr is a development to fix centralized coordinator issue. More privacy tech is for sure to come, Lighting Network (Cashu) is another layer of privacy on top if needed.

Many people come to Bitcoin and stay for different reasons. NGU is just a by product of Bitcoin finding its true value as the best Store of Value in the existence. Whatever BlackRock thinks they can't fundamentally change Bitcoin and that's the whole point.

Fungibility isn't a binary, as long as it is at a certain level it is good enough. What would be your choice? Monero? Good luck using it as money or SoV (unlimited supply, centralized development), or as a currency (virtually no one else accepts it). At the very best you could buy and sell it when needed same as your counter party, but you both still need an entrance and an exit (most likely through centralized exchanges) which poses additional privacy risks.