Pan17,
No the problem is that those who often disagree seem to so often use aggressive rhetoric. And IF they are so often in disagreement with everyone on this site then just maybe they would be happier on sites where they will find like minded. 
So many pf them are harshly judgemental and aggressive and nasty that they contribute nothing to our kind of more civil discourse. Also, so often those who disagree are only repeating GOP rhetoric created by Lee Atwater, Luntz, Rove, Gillespie and Rollins, etc.
We non-Republicans on this site have heard it all before and believe that more civil discussion and sharing amongst each other are more productive ways of interacting. 
WE do NOT need more GOP or Trad church anger. WE already know that we are hated and have been ever since Pope John Paul II hooked up with St.Reagan to stop Communism, Socialism and unionism.  WE know that we are considered to be abortionists and have been painted with the broad brush of the hated liberals.