I read FBOM years ago and was appalled at the carnage supposedly done by the Catholic Church. But as a Pentecostalist I never heard about the Catholic martyrs only that the Church did these wicked deeds for no good reason at all.
Now, real history is much more complex than Fox would have us believe, and it is clear to any unbiased reader that he had an agenda.
Many people that Protestants celebrate as martyrs slain for their Evangelical beliefs were nothing of the kind. They were dangerous heretics who believed in things that Evangelicals would be horrified to hold to. And conversely, they denied basic Christian teachings that Evangelicals would say were essentials of the faith, such as the divinity of Christ and the sacredness of marriage.
If people want to throw Protestant “martyrs” in the faces of Catholics they would do well to be sure they actually were martyrs to the truth and not merely heretics whom they themselves, in the times of such martyrs, would have piled on the wood and happily seen burned at the stake.