Surprisingly (for secularists), post religion means degrowth of the culture.
So it’s a good thing if you want Europe’s culture replaced by what the data show is happening, and it’s a bad thing if you think Europe’s traditional culture is worth saving.
Well where I am (Edinburgh) we have a superabundance of culture at this time of year - very little of which has anything to do with religion?
I’m alluding to the long term trends(one - two generations out, assuming they follow the behavior of the last two generations).