It could had been radical leftists. They hate Christianity just as much if not more than Muslims.
Either or is bad. The Left and Radical Islam are Natural Allies due to their rabid Hatred of Christianity and Judaism.
Tree Muslims AND Radical Jews were ALL over Twitter BOTH CELEBRATING the carnage of Notre Dame, you should take the rose tinted glasses off with your Jew Fetish, there are some VERY EVIL Jews not ALL Jews are good peoples here is one who is a POS and as The Talmud is full of HATE for Christians then it's logical those French Priests burned that thing:
Radical rabbi says Notre Dame fire retribution for 13th-century Talmud burning
Shlomo Aviner, who moved to Israel from France in the 1960s, suggests fire that gutted iconic church may have been divine retribution for burning of Jewish manuscripts in 1242
"A prominent religious-Zionist rabbi known for his extremist views suggested on Wednesday that the fire that gutted the famed Notre Dame Cathedral in Paris earlier this week may have been divine retribution for the mass-burning of Talmud volumes by French Catholic priests in the city eight centuries earlier.
Rabbi Shlomo Aviner, the rabbi of the Beit El settlement and head of the Ateret Yerushalayim yeshiva, said that Jews should not commit arson against churches, but also that there was no duty to be saddened by the fire, which gutted the famed 12th-century cathedral."
Radical rabbi says Notre Dame fire retribution for 13th-century Talmud burning