Why is it that Laker fans seem to dislike the Miami Heat so much? Is it because they will win the titles now?

They bag on LeBron teaming up with all-stars and not being able to win his own rings. But how many great players did the Lakers have? Look at all those great players 10 years ago when Shaq led them to 3 titles in a row. And after that Kobe demanded some all-stars on that team and he got them. So what's the difference?