I was never taught to hate Catholics, but to pity them and to fear their errors. I learned a serious concern for truth that to this day I find sadly missing in many Catholic circles. The typical Calvinist anti-Catholic attitude I knew was not so much prejudice, judgment with no concern for evidence, but judgment based on apparent and false evidence: sincere mistakes rather than dishonest rationalizations.
Source: Peter Kreeft - Hauled aboard the Ark, http://www.peterkreeft.com/topics/hauled-aboard.htm