We're not, we're discussing. For example the responses in this thread haven't been one sided, meaning that there is plenty of support on both sides to both keep and get rid of them. That's revealing in and of itself. I guess some people do like them after all.
As far them being heroes with good intentions that is well and fine, we just don't see them desire anything but the good of Eorzea. And that's not how typical people behave. How many people do you know that their only thoughts and motivations in life are saving the world? all the time? I'm not sure I find the premise of 2 twin teenagers and their friends going around fixing all of the worlds problems that compelling of a story. I would rather meet more relatable characters who have different ambitions and desires, love arcs, and fleshed out backgrounds. I don't even think the scions are allowed to have relationships with anyone so that the player feels like they could ship their characters with any one of them, but that really stunts their development. I feel like Yshtola finding a way to be together with Runar and getting married would've been an excellent way of retiring her character for example. It's not dark, it's actual much more human and relatable than constantly finding crisis to avert.
So no, I don't hate the scions, I just find them rather uninteresting. I do feel the game would be feel more fresh if it wasn't "The next adventure with the scions 7.0" when the entire 10 year story concluded.
This doesn't mean I want to see them become drug addicts or kick puppies lol.