This entire post seems to imply that people, even already-bitcoiners, will be attempting to stash their entire bitcoin-net worth in this stuff which is frankly, absurd.
That's not implied at all, or at least not intentionally so. Most of the recommendations I see are to use ecash to onboard people to Bitcoin (even though ecash isn't even Bitcoin lol) or to use it for daily spending. That's what I'm speaking against.
Additionally, it seems like the attitude here is that development and adoption of Ecash will stop or prohibit "privacy tools on top of bitcoin (or directly into Bitcoin's consensus layer) that allow us to have both privacy and self-sovereignty via self-custody" from being developed.
Again, no, I said that it takes away some of the limited time we have to make Bitcoin itself more useful and more private. If Bitcoin cannot be self-custodied easily or used privately, you won't even be able to enter a mint if you want to down the line and instead will just be trusting mints entirely with IOUs with no ability to touch the underlying asset.