Sad really. Most NH fans over here treat Hinata like a sex object and don't at all think of NH from the standpoint of how it impacts the story. Explains why a lot of them didn't give a kitten about the retcons, 180 degree character shifts or plotholes. I imagine that there will come a day when they look back and ask themselves what they were thinking supporting something with no literary merit whatsoever.
It's also b/c Sakura in the west is hated with a passion. When they say they prefer Hinata, it's b/c they subconciously despise Sakura. This is what I truly believe is one of the reasons for Hinata's popularity. Every little action Hinata had is compared to Sakura's actions, and sadly, Hinata makes a better "impression" on many.
But do not worry: As many NH are out there, enough people don't care about Naruto anymore. There is no interest in Part 3 or anything else that is coming out. Watching and reading Naruto for a decade is enough for many people.