Hate is not an immaculate conception. It doesn’t suddenly burst onto the scene without intent. Whether knowledge of that intent is active or passive is another matter which only the bearer of the rotten fruit can truly ascertain with even a hint of accuracy.
Hate isn’t spread like pixie dust. It doesn’t just happen upon you by chance encounter with someone or something with which you have nothing in common. It is a slow growing pathogen which once fully in bloom is like the most stubborn of weeds that is practically impossible to eradicate. It is spread through contact with receptive hosts.
I do not believe there is any antidote that will ever completely erase its presence once it is within you. It can however be diminished into a state of dormant harmlessness. The most effective antidote that is known to all but practiced by few (not from lack of knowledge but from lack of will) is simply patience. The patience to lift unfamiliar veils and discern the truth for yourself.
It’s like Borges library of babel. The amount of knowledge that can be gleaned from any given situation is infinite. The more you investigate, the more paths you uncover. Surface knowledge is two dimensional at best and the worst casing for ammunition. It either fails to explode upon impact or in the worst scenarios it spreads its destruction indiscriminately.