Some of them are not. Pointless resentment from an audience can literally kill a story and how they way its perceived from onto the new audience. The Sakura hate has surely destroyed this franchise even thought its not 100% percent caused of downfall that this franchise took a nose dive into the trash bin.
I wouldn't say Sakura hate destroyed anything, bar turned away some people's participation in fandom.. The Franchise remained successful, and lives on through spin-offs, games, and other things still. That's a pretty good thing.