Even if some of these infants were to be brought to America with their Mothers, they would only become wards of the state. We have enough such people already.
Why wont other Muslim countries take them in? The Afghans are treated like the Palestinians, in that no one really wants them coming in, certainly not coming in en masse.
Many are families with members who cooperated with or assisted US troops. The US promised them protection in exchange for their help. The US has a bad habit of going back on their promises. Ask the American Indians.