The author is correct that there were Catholic Hutus, who participated in the massacre in Rwanda. There were also Catholic Hutus who helped Tutsis escape, with risk to their own lives.
Also, there were equally as many Tutsis Catholics, who were the victims of the Hutus.
A good book on the subject was written by a devote Catholic woman, a Tutsi, who survived the holocaust by hiding a 4ft X 7ft bathroom, with 6 other women, for 90 days.
The book is, “Left To Tell,” by Immaculée Ilibagiza.
Its an excellent book and her devotion and faith, along with her willingness to forvive those who killed her parents and her brother, is an example of holiness.