if hate is categorically bad, then any sort of negativity is also bad. Even the word bad is bad. Being anti-hate actually has drawbacks

Merriam defines

• hate as "intense hostility ..." https://www.merriam-webster.com/dictionary/hate
• hostility as " deep-seated ... ill will" https://www.merriam-webster.com/dictionary/hostility
• ill will as "unfriendly feeling" https://www.merriam-webster.com/dictionary/ill%20will

So hate is just the extreme end of an "unfriendly feeling" which is synonymous to a negative feeling. We can go "golden middle" on this and say that moderate negative feelings are ideal, but even the moderate form seems synonymous to bias or prejudice.

• bias as "an inclination of temperament or outlook" https://www.merriam-webster.com/dictionary/bias
• bias as "to give a settled and often prejudiced outlook to"