It feels like you’re suggesting that adoption is a panacea, but for a majority of couples, it simply isn’t. I agree it could be considered selfish, but selfishness is a virtue in our society so I am asserting that it should be expected and accounted for, rather than simply waving your hand at its inherent issues and pretending they’ll go away.

Adoption has been proposed and has failed as a satisfactory solution to this problem for millenia, what has changed about it to make it relevant now?