Another thing to keep in mind is that hatred per se is an emotional state that generally negatively affects the hater without necessarily having any impact at all on the hatee.
Principled opposition, yes. Occasional anger, understandably. Contempt and aversion, sure.
But unless you’re actually locked in a physical struggle for your very life and limb at the hands of your enemy, I don’t see anything that genuine blood-boiling savage hatred will accomplish for you that a more rational and cool-headed “I reject your position and everything it stands for but I’ll do my best to achieve compassion and understanding for your disastrous failure to be a decent human being” won’t.
In the vast majority of real-life circumstances, you have no practical need for the aggressive impulses and adrenalin surge produced by the feeling of hatred, and they’re not good for your blood pressure.