When people are negative and hate on you, it has nothing to do with you. It's about what is going on inside of them. Because if they took the time to focus on themselves, they would not have time to be focused on you.
Recognize that these people are in a bad way and the best thing that you can do is say an affirmative prayer over them and release them to the One Who Has All Power to change them.
Then get back to the business of running YOUR business!