Really though...
...That is unless one's hate is continuously refined and routinely calibrated. If you shun your hate thinking it's an undeserved emotion, it will get no exercise and of course it will stay incompetent and keep bugging you in stupid immature directions. You will sit around hating someone because of his dialect or whatever while failing to pretend that this unjust emotion isn't occurring and it will all suck. On the other hand if you embrace, hone and practice your hate, it will grow stronger, it will stop giving a shit about someone's dialect and other entry-level disturbances and it can be aimed at real evils deserving strong opposition.
The world has many things for which hate is not only understandable, nor only acceptable, but rational and perhaps the only rational stance. One of these things is people who are wrong on the internet.
Hate is the catalyst of bullshit penetration. An absolute necessity. Life without hate would be pointless. I do agree that feeling unwarrented hate is suboptimal, but the solution isn't to feel bad about hating and try to stop hating, though. There are no reasonable things you can tell yourself to make the hate go away and become a robot. The solution is to grind the hate and give it some nice gear.
People who go out of their way to seem neutral and not dislike anything because it appears more intelligent... Well that's a characteristically immature Ti-dom thing tbh.