Re: Wahoo....
"And if you have a problem with the music itself, rather than a problem with what people say about it - which, it seems, is really what you dislike - at least learn about it, and get a better cross-section than a few of the poppiest examples."
You might want to try doing that yourself. Most of what you credit "The Beatles" with is actually the work of their producer, George Martin. The 1960s was the era of the producers, despite what the Baby Boomers would have believe. It was the era of Joe Meek, Phil Spector, and Brian Wilson (the latter was one of the Beach Boys, making him one of the few examples of a performer / producer.) Back then, producers were not considered part of the band—you couldn't reliably replicate Spector's "Wall of Sound" technique in a live performance, so live sets tended to use a different, simpler, arrangement—so you don't get to give the credit for Martin's (and others') technical feats to the groups they were used on.
The BBC's Radiophonic Workshop was producing multi-tracked sound effects—and even complete musical pieces—in the late 1950s. Today, they're mostly associated with their work on "Doctor Who", but before that, they were used heavily by Spike Milligan. (One of their most famous 'works' is "Bloodnok's Stomach", which is a multi-layered, multi-tracked sound effect created for The Goons in 1956. This easily predates The Beatles. Also, note that George Martin worked for the BBC's Music Lbrary prior to moving to EMI, so he would have been very familiar with the Radiophonic Workshop's Musique Concrète approach.)
So, no. The Beatles had sod all to do with any of that recording technology. They just happened to have a good producer who knew about it. Read about how Delia Derbyshire and Dick Mills produced the original Doctor Who theme, using multiple manually synchronised magnetic tape machines, with tapes stretching down a corridor to get the loops the right length. That is what producers and musicians were already doing by 1963, when The Beatles were still singing trite pap like "She loves you, yeah, yeah, yeah!"
The Beatles' main contribution was the Lennon-McCartney songwriting duo, who wrote a few gems, but also cranked out an awful lot of shallow, utterly forgettable crud. They were good, but they weren't that good.
The problem with The Beatles (and many other bands of the era) is the Baby Boomers. This generation, like every other before or since, genuinely believes that only the music recorded for their generation truly "matters". Every other generation believes that "their" music is also the best, but the Baby Boomer generation easily outnumbers the others, (although, mercifully, that won't be the case for much longer). The Baby Boomer generation's influence has become seriously unhealthy: everything has to stand up to their standards, to the music of their childhood and adolescence. As a result, the music industry has become obsessed with re-releases, recycling and band reunions and the like.
The Beatles' main claim to fame is as the first group to be so self-contained: they wrote all their own songs, performed them, recorded them, and played them live. This was not common practice at the time: most groups were much more open to playing songs written by other songwriters, and to hiring session musicians. It wasn't unusual for the same song to be covered by multiple performers and released at the same time, often in very different styles. (Just ask Neil Diamond.)
Even so, The Beatles hired in musicians for their later psychedelic albums as they couldn't play all the parts themselves, so they weren't an exception to that particular rule either.
However, the result of The Beatles' in-house approach is that songs on the same album would generally sound very similar stylistically—there'd be some of Lennon's more abstract pieces, and some of McCartney's more realistic works. And that'd be about it. They might demand that George Martin recreate a sound or effect that they'd heard on another album—the Beach Boys' "Pet Sounds" was a major influence on their later work—but it would be George Martin and his fellow engineers who made that happen.
Give credit where it's due: to the engineers and producers. The unsung heroes of the 1960s music industry.