It makes people uncomfortable because preferring one gender to another is discriminatory behaviour. It is a cause of terminations and infanticide all over the world. And can be a cause of significant mental health issues for those who cannot 'just have another baby'. And is a source of childhood sorrow for many children who were not the 'preferred gender', because of course kids can tell.
Preferring one gender over another is like preferring a smart kid over a dumb one, or a heterosexual child over a gay one, or preferring a light skinned child to a dark skinned one, or a pretty child to an ugly one. These are all things a child cannot help, and choosing to be a parent is choosing to partake in the genetic roulette wheel that is making a baby.
I think preferring one thing over another is not ideal but probably human nature - but being so incredibly disappointed about it that you cannot rest until you rectify the 'problem' (that 'problem' being a beautiful human that you chose to make that has no control about the features they were born with) except with ANOTHER child - I cannot accept that as a society we would ever accept this as normal or acceptable. I would argue that that as a society we should always consider this to be pathological, and the onlg acceptable resolution is to advocate love and acceptance of both genders. To do any less is failing our children.
I can't 'like' this post enough! Beautifully said! I totally agree!