There is nothing quite like the truth for dispelling hate propaganda. For instance, imagine modifying the hate directed at Christians, and replacing it with groups like “liberals, socialists, national socialists, antisemites, communists, and Islamists”?
Then anonymously repost it where left wingers would find it.
Retitle it “Atheist Anti-Human and Fanatical Extremism”
They would lose their collective marbles.
I’ve found that those who shout tolerance are the most intolerant