Jaymatt19 with reference to your response I do not need to quote seforim as you more or less demanded of me. All is need to quote is the sefer of common sense and kindness.
No Rabbi would dafka bring his newborn baby into shul for a period of months on end for the sake of it. If his wife is unable to care for the baby at that time of her life and there is no family/communal support to hand then a little charity to allow the Rabbi to bring the baby would not go amiss.
Ames, I am so sorry what happened to you in shul. It is sad to see how unkind people can be and we do try to judge them l’toiva; maybe this guy does not have a family, is troubled etc. That said, may Hashem Bless you for your dignity which is a midoh to be admired
As a footnote to the subject of babies in shul. I do not agree with bringing babies into shul but there is nothing wrong with encouraging children to come to shul as in to shul, sit and daven and if they are too small just to sit for a while with a book of pictures or whatever, not to run around outside like a school playground making a racket.