What has happened to driving standards on motorways and is there a fix?

More of a rant but also interested to hear any potential solutions! Drove from south to north, M25 (dartford side) and then M1 and you’d think the UK are supposed to drive on the right and overtake on the left! Such long stretches of the 2 left lanes being near empty and everyone sat in the right 2. Worst bit is, is that they seem oblivious to it too. I think this is the biggest factor causing traffic more so than there simply being more cars on the road.

I know trying to monitor and enforce tickets isn’t feasible so what other solutions is there?