Hello dear, this is a very interesting discussion and I agree with you that love is the strongest bond, much stronger when there are family ties and genetic links, but nonetheless, it is the love for another person that links you to them. And the capacity of the human heart to love is amazing really. But love develops over time and our mind is sometimes not ready to give that time to some baby by adopting it. Rather we go for surrogacy to soothe our minds and ruffled egos. I just wish everyone could think in a pure selfless way for some hours a day only. That alone will make this world a happier place.