The dislike for England isn't entirely without logic
Italy certainly don't have a good football history when it comes to hooliganism and so on, and that includes racism. But neither does England lol, people do still remember heysel and so on
... Especially in Italy. and obviously being English it's easier for the majority of Europe to understand them, and more people watch the Premier league and so on... So a lot more focus there.
Racism against Sterling in England is also still very real. Both when it comes to tabloids and the gammon fans. He has gotten so much shit already this tournament, while being one of, if not the best player for England.