Because true love is a positive feeling. And naruhina is that a positive love. Enought sed. Besides hinatas resolve to achieve narutos love in the end of the war(chp573) plus hinatas ninja way pretty much guarantee naruhina in the end.
and agree on the symbolism that is use on the naruhina pairing. Its so there.
man this pairing debates are funny , so funny the way naruhina and narusaku fans just use their own personal views and some manga evidence to prove their arguments. when in reality they don't know what the hell is going on anyways. I mean its better to just be a supporter of a a pairing that you like and just keep quite about it and wait till the end of the series to celebrate and get to brag that you where right. am a naruhina fan for sure, but narusaku I still believe is possible. yet this is tiresome. but I do love how hinata has love naruto without question and admire him as well. yet despite being a naruhina fan I believe hinata is to good for naruto. and the only way I see naruto worthy of being with hinata is if he drops what ever feelings he had or has for sakura. and loves hinata without question that he does love her above all. that's the only way naruhina happening could possibly make me feel happy.