This is one of those cases where "virtue lies in between the two extremes".
One the one hand, you have parents who fail to discipline their toddlers, and let them talk, throw tantrums, play with toys, an in general make too much noise in church.
These parents need to realize that God will hold them accountable if they fail to instill self-control and discipline in their children. Lack of discipline, if not corrected later (by the prison system, the military, hardships, etc.) will certainly lead to Hell fire -- for the children and possibly the parents as well.
On the other hand, you have bachelors -- not used to children or babies at all -- being overly strict about the matter. A baby cooing (not crying, but making cute noises) is not a big deal. These people fail to realize that the married life is very difficult, and married people need some spiritual consolation as well. We married people used to spend extra time praying in the chapel -- and now we don't get to because we have multiple little ones to care for. Some have had to give up going to Mass during the week. Try to have some compassion.
And don't think that married people don't need spiritual consolation, and are "good to go" because we get to indulge our passions all the time. Anyone who thinks that has never been married, or at least has never had kids. No, we need God's grace as much as anyone to avoid getting frustrated, upset, angry, etc. when dealing with all the stresses of life. Life can be hectic sometimes.
Just think when you hear a baby crying -- you only have to hear it for ONE LOUSY HOUR. Where do you think that baby goes after Mass is over?