User blog comment:Xilinoc/Ch. 554 - Desperate Lights/@comment-16214733-20131025185325/@comment-26420452-20131026184138

Uryū said that when he heard for the first time the Shinigami-Quincy story, he thought that it was in fact the Shinigami who were right. That because he was raised up and trained by an unorthodox Quincy. He developed a grudge against the Shinigami only when he realized it was them who were behind the death of his grandfather. The other Quincies must have been raised not only to hate the Shinigami, but also to be ready to give up their life for their Kaiser one day.