Is this ever true! A brilliant blue-eyed blond boy of my acquaintance (now a man) went through harassment and hazing, even by the teachers and principal. I recognized it as the same abuse his brilliant mother, who had also skipped a grade, had suffered in school in the 50s.
Fortunately for this boy, his mother was on hand to champion him, as her parents had not been for her, and he went on to success in a private high school and top-notch university.
You don't even have to be brilliant to get ostracized. Just being successful is good enough. But such is life.