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It's nice to see a country actually using rational tests for citizenship.
And for those who say it's a double standard for the husband or what about French citizens who radicalize, you are missing the point. You can't strip citizenship away; otherwise it would have little value and most people would be stateless and without rights. The permanence of citizenship is all the more reason to be careful about who it is granted to.
Someone who has no concept of French values and civil society or human rights is not prepared to contribute to a free and somewhat more enlightened society. France has a right to defend itself from backwards and totalitarian regimes.
To be fair, they ought to keep out the fundy Christians too. But I am willing to bet France would not have a double standard when it comes to FLDS or Scientologist weirdos. They probably wouldn't get citizenship either.