Does any of these "Beatle-haters" realize that even if they don't like the music, they have undoubtedly been listening to music/bands that were inspired by the fab four?
A band who played their own instruments, who wrote their own songs, whose hair (at the time) was long, white boys who covered R&B, the classic four-man-band with drums, bass, rhythm and lead guitars that is still the norm for today. Pre-1963, all you had was the likes of Paul Anka, Bobby Vinton, or some other performer from the same mold.
The Beatles broke that mold and nearly all popular music today was inspired, in some way, by them. It's OK if you don't like their music, but you are kidding yourself if you think any of the music you DO like today doesn't have roots with the Beatles.