Outside of Cleveland and Miami, there's just a load of people that hate Lebron. If Lebron ever signed here, before he ever played a game, I am sure there would be a whole lot of Lebron hate, including vandalism of murals and posters around town calling him the "King of Boston". Heck look how many on this site hated Kyrie before he started playing here. Many still hate him. And before coming here, Kyrie wasn't nearly hated in this town as much as Lebron is.
I guess I am saying color me unsurprised by this story,