"reason to hate" is a grammatically correct phrase and can be used in written English.
Example: There is no reason to hate someone just because they have a different opinion than you.
France loves its nukes; so, oddly, does Russia, which has most reason to hate them.
There's no need, and no reason, to hate Mr. Romney and others like him.
"If you hated him, this is more reason to hate him.
The forum exemplified why Americans have every reason to hate Washington right now.
The attack gave Mr. Yevkurov a reason to hate Mr. Umarov — but he had reasons already.
Oh, there has been plenty of reason to hate Duke basketball for 25 years.
3. Tory backbenchers have one more reason to hate their Lib Dem coalition colleagues.
I will give you a reason to hate everyone you love.
Remember this little aphorism: Do not give people a reason to hate you.
The house is a love object, yet there is reason to hate it.
"He said he just gave the fans another reason to hate him," Jeter said.
