It's better to be hated for who you are, than to be loved for someone you're not. It's a sign of your worth sometimes, if you're hated by the right people.
Discipline is a symbol of caring to a child. He needs guidance. If there is love, there is no such thing as being too tough with a child. A parent must also not be afraid to hang himself. If you have never been hated by your child, you have never been a parent.