Didn't George say "only Britain hates the Beatles"?
But to be fair, the drug busts were part of a bigger establishment assault on rock stars in general. The Stones got hit hard too.
Paul saying he took LSD was fair enough for criticism. Even though it wasn't illegal it was still recognised as dangerous. A rock star would still be criticised (rightly) for saying the same thing today.
MMT just wasn't very good.
I think rather than anti- Beatles, the British press was more anti-rock. (with the fabulous exception of The Times bless them.) Popstars were so much more pallatabler when they wree nonthreatening, wore suits and performed like monkeys for the press.