I hear this is stereotype and their religiously is only skin deep and has pre-Columbian elements to it. The abortion rate in putatively Catholic Mexico is high enough.
That's true. Some Mexicans are very religious in a good way, some are religious in a Mafia way but worse, some are religious in a very superstitious way, many aren't religious at all. It's a stereotype that doesn't fit ---but I think it comes from the Southwest Hispanics who were descended from Spaniards or some of the Conservatives who fled Mexico at the time of the Revolution in the early 1900s, they tend to be pretty religious Catholics.