Then continue to use the encryption that exists today. After all, your concern is for future standards that make encryption stronger.
> And fork a browser? Are you nuts?
A lone user forking a browser would be nuts. A company that's already willing to pay through the nose for MITM proxies can afford to fund a minor browser fork. Indeed, if this use case is as important as you suspect, then you ought to start a company that sells customized browsers for exactly this purpose. Think about what site you're on; where's your entrepreneurial spirit? :)
> But browser makers have an obligation to keep the world wide web usable.
Usable for whom? Between users (who need strong encryption), websites (who need strong encryption), and corporate intranets (who need to snoop), whose needs ought to be prioritized?
> abandon the web and start making proprietary native applications
The web emerged from a world where all applications were native and proprietary, I don't think any browser vendor is losing sleep over this possibility.
> Browsers just totally suck at interfacing with a dynamic user role.
Again, sounds like there's demand for a new browser then. :)
> nobody wants to make browsers easier to use (more the opposite)
Why is that?
Every non-Microsoft browser vendor used to cry themselves to sleep at night from days fighting against vendor lock-ins and corruption of standards. They certainly care if it all goes south.
I suppose people don't want easier browsers because they imagine they are easy enough and can't imagine something better. At least I hope that's the reason, and not that they fear change, or are indifferent to the needs of people other than themselves and prefer to design for that alone.
There's no way in hell I'm crazy enough to make a browser, though. I'd rather run for elected office, or eat an entire Volkswagen Golf.