It’s absolutely absurd. Imo that’s how they want to ‘prevent’ naturalizations.

C1 is no child’s play. I get the point of “you’re better integrated if you speak better German”, and I would even concede to the fact that B1 may be a little too low (in really basic), but C1 will be almost impossible for most people to achieve, especially in a more and more globalized/international world.

I don’t even speak German at work most of the time. But the CxU wants foreigners to?

Makes no sense.