/lit/ - Literature

Most PG Wodehouse books or stories are very funny. I recommend the Jeeves & Wooster series or the Blandings Castle series, though he has some gems among his shorter runs. He's the only author I've read who can write a sport as dull as golf into a humorous and nearly gripping game.
I also really enjoyed the Flashman Papers series, though it is by no means high art.

Flashman

>>14519893
>Royal Flash > Flashman at the Charge > Flashman > the rest

Nothing to recommend, but sounds like American or general Western degradation rather than a purely British issue. The only caveat to your list is the death of pubs probably being of different cause to the death of bars in the states, though probably not much different in that each carries an associated stigma which discourages younger generations from going.