Being unable to read the soul of another person has no bearing on what that person's motivations may or may not be. I am very clearly not saying that a person who is nominally Catholic but acts only out of self interest and who is apathetic to the wants and needs of other is more virtuous than an atheist on the basis of them being nominally religious.

No, not all or even most religions are "children" of God. There is one true Faith on the face of the planet.

Finally, you're factually wrong in that last paragraph. The percentage of wars caused by religion is something around like 5%, if I remember correctly. The amount of priests who commit these crimes is around 3%, which is the lowest percentage of any group on the planet, being significantly lower than public school teachers, sitting at around 7-8% of a SIGNIFICANTLY larger number of people. In 2018, there were THIRTY cases against the Church in America, and only 8 were even substantiated in a court of law. Whereas in public school, there were millions. Of course even 8 is too high, but it is literally the lowest rate of sexual abuse on the face of the earth.

Finally, the "mass graves" thing is a myth and has been debunked time and time again. The residential schools were run primarily by protestant churches and the Canadian government and you'll find that the Catholic-run schools were regularly requesting aid because they lacked the means to take care of a populace of children who were getting ravaged by deadly diseases. The children were then buried in individual graves all marked with crosses.