I'm going to call a baby ugly
What makes you think that that is okay?
I'm just not really fond of babies.
The parents are going to be very upset. You need to be more respectful of others feelings.
I don't really care. Besides, it's a minor that they love very much. I'm sure they'll deal with it.
I still think that you should keep those thoughts to yourself. You need to consider how your words will effect people before you say them.