Many of the Beatles songs were about drugs. These include Strawberry Fields Forever, Day Tripper, Yellow Submarine, Help, Rubber Soul, Cold Turkey, Glass Onion, I Am the Walrus, and Penny Lane.
RUBBER SOUL is not a Beatles SONG. IT's an ALBUM!!!!
Strawberry Fields is about a place near where Lennon grew up. Help is actually about Lennon's anger & reaching out for a woman's help with it (it was supposted to be a quick one-off because they needed a title song for the movie, but Lennon went to town with it instead). Penny Lane is about a place where McCartney grew up. Cold Turkey isn't even a Beatles song---it's a Lennon solo song.
As far as Lennon is concerned, he was a poser in the utopian quest. He talked it but he didn't walk it. In the 70s he owned no fewer than 11 apartments in the Dakota while less than 2 miles away some of the worste urban poverty in America went un-aided and un-noticed by him. We used to see him all the time at Tracks, an after hours joint downstairs behind the unmarked black door on the south side of W. 72 off Bway. He was cool and introverted, just a guy on the block. We won't talk about Yoko.
Bottom line, these guys were just performers, not heros or demigods. Like their music or don't but don't expect anything from them