He's a rockstar. The biggest of our generation. Rockstars don't filter themselves, rockstars aren't PC. Rockstars scream, stir up controversy, and most importantly, impact our generation more than anyone else.
Okay, then, here are 50 rockstars that have been very influential over the years; many of whom have also been controversial. Please be good enough to point out which of these have put anywhere near as much energy into endless self-aggrandizement and insulting other musicians and fans, as Kanye West has. Since, as you say, rockstars stir up controversy, this ought to be easy.
Aerosmith, The Beatles, Beck, Chuck Berry, Black Flag, David Bowie, James Brown, Johnny Cash, Ray Charles, Eric Clapton, The Clash, Elvis Costello, Depeche Mode, Bo Diddley, Snoop Dogg, Dr. Dre, Bob Dylan, The Grateful Dead, Jimi Hendrix, Ice-T, Elton John, Janis Joplin, B.B. King, Kraftwerk, Lady Gaga, Led Zeppelin, Madonna, Marilyn Manson, Bob Marley, Nine Inch Nails, Nirvana, Ozzy Osbourne, Parliament, Phish, Pink Floyd, The Police, Elvis Presley, Prince, Queen, The Ramones, Red Hot Chili Peppers, The Rolling Stones, Santana, The Sex Pistols, U2, Van Halen, Stevie Ray Vaughan, Muddy Waters, The Who, Howlin' Wolf.
Or, look through the list at
http://www.rollingstone.com/music/lists/100-greatest-artists-of-all-time-19691231/ and pick a bunch from there.
Rockstars being controversial is not a new thing. But talent does not excuse crappy behavior.