I don't think that the two "main Churches" here (Catholic Church and Evangelical Church of Germany [roughly 70% of the population belong to these two] have adopted Western culture values.
Really? In the past, many (if not most) cultures have had views very different than the Western cultural views on these topics...
- The evilness of slavery
- That love should be voluntary and that people should pick their own mates.
- That democracy is better than Monarchy.
- That woman should have political rights and property rights.
- That children of any class should be protected from abuse and not made to work.
People living in what is now called Germany had very different values from Modern Western values on each of these topics in times past. Now it seems that Germans of any or no religion are on the same page.
If they didn't "adopt" Modern Western cultural values... how did they acquire them?