I was a batch 2 owner of the FairPhone 1, the FairPhone 2, the FairPhone 3+ . . . and just a month ago upgraded to the new FairPhone 6. And a guy who absolutely loathes Bluetooth earbuds. Yet I don't miss the 3.5mm jack for a simple reason . . . wired USB-C earbuds are a thing. I picked up a cheap set from JBL and never thought about the 3.5mm jack again.
Yes, I agree . . . they could have/should have stuck with it. But honestly . . it's no huge loss.
There is a word for the future you are describing: exterminism.
Sadly the world appears to be heading that way. This is the most bleak future described in one of my favorite books- Four Futures:Life After Capitalism
It's a quick read . .and highly recommended. https://www.versobooks.com/en-gb/products/59-four-futures