Even if there is no God Europe will be "punished". Just take a look at history to see what happens when societies degenerate and do things like legalise and promote sodomy. Eventually they become so corrupted that they stop working.
Has any civilisation ever legalised abortion?
................ Look at the behaviour of people on Youtube on in the typical town centre four nights per week. Look at the drug abuse and the breakdown of families and the psychologically damaged.
Society is CLEARLY breaking down and unchecked a system breakdown must be on the cards.
Now, sure, there might be a grumpy old man factor in there. I accept that. But do you really think you can have 80 or 90 percent of young people thinking sodomy is OK and perfectly natural and then bringing up the next generation as psychologically stable people?
I don't. I think that accepting those sorts of perversions as normal is going to have consequences on one's own moral choices.
I agree that society is breaking down. But it makes me want to weep, rather than come out with all this talk about "chastisements" and "punishment". If Europe and the US crash economically and socially, and are also over-run by foreigners of whatever religion, it will be the end for both those societies. And they won't come back. There will be no conversion, no resurrection of Christendom. IMO.
But let's be more specific. It's very last remnants of Christendom that are being wiped out, never to return, in my opinion. So what's the good of punishing people if they don't know what they're being punished for. If Europe is destroyed, the survivors won't say - Oh, it's because we abandoned Catholicism! They'll say it's because we didn't stand up for our secular Enlightenment values.
You asked if any civilisation has legalised abortion. No, but plenty have practiced infanticide as a way of limiting their families. And had no problem with sodomy either. The Romans tolerated both and their empire lasted 1000 years.