The one good thing to have come out of Blockstream is the confidential values technique for blinding output amounts.
What if that technique outlives sidechains and Blockstream?
Very good chance at that happening.
I guess the chance is more than good
Do you really assert there are not very powerful vested interests against stronger anonymity? They are likely lurking and haven't displayed their power yet (if historic norms are not to suddenly cease...yeah I know it is different this time...it always is until it isn't).
I think you are delusional. Just try it.