The Doors were not boomers.
Well, they sure as hell weren’t Gen X. Morrison was born in 43, Krieger in 46, Densmore in 44, and Manzarek was the old man born in 39. I suppose they were more at the tail end of the Silent Generation, except for Krieger, but generations always get a little muddy at the borderline. The boomers bought lots of their records, that’s for sure.