In 1992, Sinead O'Connor tore a picture of Pope John Paul II in half during a performance on SNL in protest against generations of abuse toward children within the Catholic church.
30 years later, after some very public mental health struggles. She was a humanitarian with a big heart and a lot of courage. Don't try a take away from a dead woman's accomplishments because of personal choices toward the end of her life.
She studied theology and was the victim of institutional abuse, she was better educated on this than most and sought out a higher purpose. I can't denigrate her for that. I'm an atheist but I won't judge someone who sought refuge from an abusive and horrible past.
That's one description, but in context it's misleading. If we wanted to talk about Christianity or Judaism we could look at the Bible and find shocking things there as well. And maybe we should. But that's a totally different discussion from bad things that the Catholic Church did in the 1900s.
Exactly. You're trying to compare things that people probably did 1500+ years ago with things that happened in our lifetimes. There's no way to attain justice for actions that happened over a millennia ago, and it doesn't really make sense to try.
If you want to convince people that organized religion is shit, I think you have a lot of good ammunition on hand, including some of the things that you mentioned. I'm not sure you're going to turn people off to Islam by mentioning that Muhammad was a warlord, though.