I doubt it. The reason that so many European couples (and many American ones as well) have so few children is not that they can’t afford them but that they would rather have luxuries and an affluent standard of living. This is precisely the kind of selfishness that the pope is condemning. If it were genuinely too expensive to have more than one or two children, then all of us who have large families would be living in poverty. But that is not the case. Most married couples who have larger families, and who usually live on one income, are in the middle class.
Go easy. The pope hit them in their conscience. That hurts.