Eh...so they've been replacing Sakura since the beginning. Jerks.
Well they tried to. And Ultimately they succeeded at the end. But never the less, they can never take away the real heroine and (ACTUAL) love interest status from Sakura no matter how much they try to cover it up because remember, Sakura was always the emotional support for Naruto and vice versa, among other things too. That is why so many accepted that they were the logical couple to happen. Those that don't either show irrational hatred of Sakura or have Deluded fantasies about Naruto, Hinata and the romance they they think those two are suppose to have. And also it is those aforementioned groups that believe ANY BS calling NaruSaku Parallels and romance in the series a "red herring"