You’re sufficiently passionate about the matter for me to believe that either you’ve had your nose rubbed in brine problem or you have an interest in the brine problem not being solved.
................
Which is it?
As well, clearly you didn’t read the article I wrote five years ago which shows the academic and entrepreneurial work being done on the problem of converting brine from a cost center to a profit center.
(And yes yes you’re right that its not there yet. But the problem of converting brine waste from a cost center to a profit center is far from insurmountable.)
I bet you think nuclear fusion is just around the corner as well.
Look when there’s a solution then we’ll talk. Until then it’s just talk.
But there are other solutions to fresh water supply that do not involve high energy desalination tech. Those solutions are much more promising and in work ***now*** not tomorrow.