I agree that there is no better solution and like you am hopeful for what scaling solutions the future will bring.
You are correct in pointing out that bitcoin itself is not straying away from sovereign money but what so many people are and are choosing to interact with is far from sovereign. In my mind the straying is more cultural that technological.
As bitcoin becomes increasingly mainstream the average bitcoiner strays from being an adversarial thinking libertarian.
It could be compared to the internet and how there is no physical limitation preventing each business from operating their own website yet increasing numbers of them choose to only advertise and operate through Facebook and insragram relinquishing control in the process and opening themselves up to censorship, surveillance and deplatforming. These same people will probably choose to only interact with bitcoin in the same way.
These are my fears and I hope to be wrong. I am glad there are so many smart and capable people working on open and interoperable bitcoin layers and hope to see them win.