We need a new Driving Standards Agency with frequent retests and referral for people reported as poor drivers and to start pulling people off the roads if those standards arent good enough.
For me the issue is that quite a large number of people seem to drive around at 40mph in a 60mph these days - even when safe to observe the speed limit. Which would be fair enough, but then everyone behind them follows with 1 foot of distance between them so you can't overtake unless you fancy doing a 6 car overtake which will then be caught on half the zombies dashcams
So instead you just join the 40mph queue and quietly fume.