It sounds a lot like what the leftists say about conservatives.
I am familiar with the sacrifices (including in many cases their lives) that many Catholics and Lutherans made in many Nazi countries protecting the Jews, I have NEVER heard of a SINGLE Calvinist who showed this type of moral character. Perhaps they were all in Geneva helping the Nazis hide their plunder.
I know one of those Genevans who plundered Jewish treasures. He's a Roman Catholic.
Calvinists, unlike so many in Rome, don't go around crowing about the Jews they saved when Pope Pious XII was selling the entire race down the river by making pacts with the devil.
But during World War II, in defiance of the Vichy and Nazi regimes, they hid some 4,000 Jews, many of them children. Ordinary French farmers and shopkeepers risked their lives to rescue Jews from the Holocaust in the largest communal effort of its kind in Europe. What they did has been largely ignored or forgotten in France, experts say. Yet in Israel, Chambon is one of two European towns honored at Yad Vashem, the official Holocaust memorial in Jerusalem. Opposite a stone Protestant church in this French hamlet sits a plaque presented by Jews to "the righteous."... Rooted in Huguenot tradition - Chambon has unusual roots as a town. Most locals are Huguenot descendents - Protestants driven out of Catholic France in the 17th century. Those not fleeing or sent to hard labor hid in the mountains, living off their wits, and living inside the Bible. They were deeply devout and studied Scriptures daily. They identified with the persecuted children of Israel, developed powerful narratives based on the parable of the Good Samaritan, of sanctuary, of the Pauline teaching that "faith without works is dead," and they retained strong skepticism of worldly authority...Chambon-Sur-Lignon, France: The mostly Protestant villagers of this tiny mountain plateau didn't talk about it at the time. Today, they still mostly don't talk about it.
The Ten Boom family were devoted Christians who dedicated their lives in service to their fellow man. Their home was always an "open house" for anyone in need. Through the decades the Ten Booms were very active in social work in Haarlem, and their faith inspired them to serve the religious community and society at large.Corrie Ten Boom and her family were members of the Dutch Reformed Church. Perhaps you've heard of her?During the Second World War, the Ten Boom home became a refuge, a hiding place, for fugitives and those hunted by the Nazis. By protecting these people, Casper and his daughters, Corrie and Betsie, risked their lives. This non-violent resistance against the Nazi-oppressors was the Ten Booms' way of living out their Christian faith. This faith led them to hide Jews, students who refused to cooperate with the Nazis, and members of the Dutch underground resistance movement.
During 1943 and into 1944, there were usually 6-7 people illegally living in this home: 4 Jews and 2 or 3 members of the Dutch underground. Additional refugees would stay with the Ten Booms for a few hours or a few days until another "safe house" could be located for them. Corrie became a ringleader within the network of the Haarlem underground. Corrie and "the Beje group" would search for courageous Dutch families who would take in refugees, and much of Corrie's time was spent caring for these people once they were in hiding. Through these activities, the Ten Boom family and their many friends saved the lives of an estimated 800 Jews, and protected many Dutch underground workers.
-- Excerpts from The Corrie Ten Boom Museum's website

What an awful comment. Besides Corrie Ten Boom in Europe the underground railroad to free the slaves was run entirely by Calvinists and Baptists on both sides of the border, maybe a Quaker family here and there
The Jews have a list of “the righteous” and books about the people who helped them, there are many Calvinists listed, some that I remember are the Bogard family