"All websites (including this one) should have a one-click policy to allow or reject cookies. Period."
Nah. Every website should not use cookies at all. Period.
There is no valid reason to have these. But plenty of evil ones.
As well as making the interwebs a much nicer place, getting rid of cookies would seriously piss off advertisers, marketroids, influencers (whatever they are) and the other unpleasant life-forms who are all destined for the B ark. Which is a bonus.