I don't think I am, at least speaking to the US, but if you've got a particular argument I'm open to hearing it.

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Just as some related examples to illustrate that there's a whole lot of children not growing up in some idealized life though:

~23% of children in the US live with one parent and no other adults in the household.

~40% of children born to married parents in the US will see those parents divorce before they turn 18.

~40% of children are born to unmarried parents. I don't know where to find what the rate for those parents splitting up is, but I'll assume it's probably not better than the married ones.

1/7 children experienced abuse or neglect in the past year, 1/4 will at some point in their childhood.