If only they did invoke the Blessed Sacrament excerpt as a swear word. France has been a secular state for more than a hundred years and it has been downhill for them all the way.
France, like essentially every European country, has allowed secularism to permeate every fact of their lives. They have handed the muslim fox the keys to their henhouse and now they are reaping what they have sown.
Europe’s moral compass is irreconcilably broken at this point and their utter social decay and descent into the liberal abyss is an outcome as predictable as a sunrise.