>> Nobody is saying to be stupid here. But if love can not drive the whole thing, might as well hand the keys over to the devil and tell him he’s won, all hail hate. (However, yes it can. But it needs people willing to believe it even in the face of difficulties.)<<
A little strong there, but there are good arguments for Christians to have little ones, when it makes sense.
Sadly, not the thesis of the OP...
We could paraphrase and say that yes, it is worth the trouble to persevere in difficult family situations. That’s a principle which applied to Ludwig Van Beethoven. To be born in a family that is poverty stricken, his mother diseased, earlier siblings died young or stillborn, many modernists would advise abortion.
And to be fair even Ludwig did not escape misfortune — this great musician went so completely deaf he could not hear his own concerts. But you don’t see him pondering suicide either.
I don’t suggest answers that take the love out of the situation.