Family is indeed the corner stone of civilization.
Why do you think there are less divorces on the Asian continent than any other. But family integrity has nothing to do with tax breaks. That is no different than the welfare queens who never stop having kids because each additional kid brings in more benefit checks.
If you want more kids, more power to you. Just do not expect the single tax payers, the empty nesters, the retired, etc to support your larger no. of kids via tax breaks.
I wasn’t arguing the point with you philosophically. I was telling you that you’ll never leave to see it changed, and explaining why.