I have found that Floyd fans appear most often to dislike GGG. I don't know if it is racism or not. It might be just that he isn't American.

@Ron Swanson I doubt it is because he has a thin resume. There is no reason why one can't appreciate a fighter with a thin resume, especially when he is a knockout artist. It is not like he has avoided anyone at his natural weight class. He has unified the titles and people at or around his weight class have avoided him. Compare the hate GGG gets with Thurman. Thurman's resume isn't deep at all. Yet, he isn't close to as polarizing as GGG.