I'm not sure if you just wanted to disagree with me for whatever or didn't understand what I said. 

Tuuj mentioned that he's heard rumors of KG wielders having a harder time with Bijuu handling when they become Jinch. That's because in multiple Naruto RP's in this forum, in order to keep some balance, they made it so that Bijuu weren't that much of a buff to already powerful characters. 
I don't remember saying anything about the canon reasons as to why the Uchiha can't be Jinch, nor how they were selected. Also Kurama did dislike Sharingan users, because they manipulated him. But that was just the excuse people used to justify their decision regarding KG and Jinch status. Otherwise, you're right, and I wouldn't ever say the contrary. e.ê