I doubt that's correct.
Basically nobody in the bitcoin community these days is talking about strong privacy.

Even if there was a L2 or whatever built extremely well, if there was any friction at all nobody would use it.
ie, Liquid.

and protocol level privacy will never happen.

so, as things stand right now, the options are either
a useless sidechain,
or a futile discussion about a substantive change to the protocol.

and since privacy is necessary for censorship resistance, its hard to see a path for bitcoin to succeed. 

 Tldr