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.