If you love, you immediately also have the fear of losing said love, now.. in the words of Yoda: Fear leads to anger, anger leads to hate, hate leads to suffering. That is the path to the darkside!
Now add to that a predetermined genetic condition in which you actually have an overabundance of love, and a tendency to overreact when said love/caring goes away? I mean there's a reason why Darth Vader turned to who he was..
I'm betting that when Hashirama is talking, somebody will spoil the beans about the war.. And I don't care enough for Minato to think what he might have to say, at least nothing valuable for Sasuke's sake..
We always knew that he was kinda prejudice against the Uchiha, it was just common logic considering the times. I really like how he tried to hold up his convictions when Orochimaru told him.. "Nonsense!"
I really didn't like the first much in this.. I have to side with Suigetsu on this one.. How the heck can this be the guy that persuaded the Uchiha to stop fighting and join them (their sworn blood enemies) in the creation of a village.
That's not what's written at all.. It's extreme anguish, caused by overflowing caring emotions turning to hate = Triggering of Genetically specific Chakra => Sharingan. Meaning it's quite the opposite of love = sharingan. Breaking hearts, and reacting with aggressive emotions = Sharingan. It's basically Kishi trying to talk-no-jutsu is into believing that the Uchiha aren't really that bad at all and are caring and loving deep down inside.
Like I said: Darth Vader. And don't forget what happened to him!
Nah, the sharingan ain't bad, it's just a symptom of a genetically predetermined set of chakra being released from the brain after being triggered. Don't hate the symptom, hate the underlying genetical illness!

Don't hate the oral rash when the patient has Wegener's.. -.-
As soon as I read 'inbreeding' I knew you were going to play the GoT-card.. xD