can't all catholics just get along?
From the outside looking in, it might seem that Catholics having a heated discussion are not "getting along." But if they are truly Catholic, they are having something like an intellectual skirmish, not disagreeing over anything really essential to the Faith. When the overseer of such discussions is truly Catholic, he is able to correct the specific error and peace immediately settles on the scene. When he is not, all he can do is pronounce an end to the discussion, because he does not perceive the cause of the discord, nor is he likely to care about correcting error. For doing so would eventually bring him to the point of correcting his own error. People generally don't like to face their own shortcomings.
What you are seeing sometimes, is a heated exchange peppered with assertions of someone or someone else who does not know the Faith well enough, and is confused. There is a lot of confusion going around these days.
Some of those confused souls spread poison in their words because they believe they are an authority, but they are mistaken. The devil has sown his seed far and wide, and the good grain grows mixed with the other stuff. It takes a skilled farmer to know the difference and how to deal with the problem. At some point divine intervention is necessary to separate the good grain from the bad...