I have three children so your assertion is incorrect.
If it means that the world is a better place afterwards for them, some hardship for us all is not a bad thing. That includes me and my family. It's not an anarchist pipe dream. It happens when the government sends your country to war as well don't forget.
I talk to a lot of people from the rather war-torn bits of Eastern Europe and they'd do it again to be free from opression.