Likely true, although it is hard to imagine receiving more intense hate than we get from the Democrats, the party of peace and love and butterflies and rainbows and unicorns.
In the history of Christianity I think you will often find greater hostility directed against heretics (who had the "wrong" version of Christianity) than against infidels (who did not profess to be Christian at all). Same principle.
Hating an enemy force is one thing. Hating someone who you are forced to grovel to, lie to, and beg from all the while thinking they are useless morons unworthy of you creates a whole next level of hate.