Geez. Maybe I should have picked a different song and artist. The last thing I wanted to start was the 10,000th Green Day argument.
About the Beatles, though, they came along at exactly the right time. The 50's sound was on its last leg, and the Beatles were the shot in the arm the music scene needed. They captured lightning in a bottle, because music fans from the 50s were in their 20s by then and the next generation was left with the residual effect of Ricky Nelson, The Penguins, The Platters, etc, etc.
The early 60's was a transitional period for rock and roll, even at its early age. After the flash point of Elvis, Little Richard, Jerry Lee Lewis, and the like, rock and roll wasn't ten years old, and already the flame was starting to flicker. The initial craze had settled, and it was pretty much par for course, a sort of subdued, steady as she goes type vibe in music back then. No real daredevils or what have you. It was as though all the artists from that time had taken the recipe for rock and roll, and just stirred it, without adding anything new.
When the Beatles came along, they were the 60's equivalent of Elvis. Where Elvis had long sideburns, they had mop tops. They had the Italian boots and the tight cut pantlegs. The 'new' wild.
KiRAB ate it up, for a few reasons. They were bored with music, and, on top of everything else, their parents hated it. LOL. That is the one thing that has not changed in 50 years of Rock and Roll. If my parents hate it, it must be good.
My own personal opinion is, I thought the Stones were, if not better, more interesting. While the Beatles sang "I Wanna Hold Your Hand", the Stones sang "I Wanna Be Your Man". The counter-culture Beatles.
Anyway, my two cents.