I think it’s vitally important to be mindful not to hate anyone, even if they seem to be utterly hateful.
If you fall for the trap of hating them, it only corrodes you and makes you a hater. Hating them does nothing to make them any less hateful.
I say treat them like another thing to be grateful for. Be grateful that you’re not as hateful as them, and grateful for the lesson they’re giving you in learning not to fall into the trap of hatred.