He's not a hater. He just didn't expect Law to become so popular instead of Kid. He said he planned to defeat multiple supernova in the New World to show it's serious. He also said he expected Kid to be popular instead of Law. So I'm guessing he planned for Law/other Novas to get one tapped by Yonko but switched to Kid when Law became so beloved.
Yup

Oda basically now favors law more due to popularity and money
 
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