Positive Deconstruction

I read a term that I am pleasantly surprised did not cause me to hurt myself.
“Positive Deconstruction.”  It is positive because it finds points of agreement while it deconstructs as it also finds points of difference.  In other words, it aims to start from points of agreement.  That tends to cause negotiators to be more open to discuss points of disagreement.
It had me thinking that is the way much negotiation is carried out.  Often it seems to me there is little hope of agreement being reached only to hear it has been.  So agreement is found between what appear to be polar opposites.  I think right now of the negotiations in Northern Ireland.  I was pleasantly surprised to hear there had been a coming together for a common purpose or goal of both sides involved.
To me it makes so much sense to approach matters this way.  As in any negotiation there must be a willingness from both sides to reach a mutually satisfactory conclusion.  If one party is unwilling, then to me negotiation is a waste of time.  Also there needs to be mutual trust.  If one party states something to get its way and reneges on what it agreed to, then it will be a case of “once bitten twice shy.”
But as long as those conditions are met it seems that often people are not as far apart as may be first though.
To some compromise is a dirty word.  Yet to me it is totally necessary.  Some things for sure are foundational and never up for negotiation.  But it is like a song I like a lot says, “some of them we must defend with everything we’ve got, some of them don’t matter much at all.”
It is amazing how many conversations I engage in where what does not matter is defended like it does.  But in the end, I always ask myself. “does this matter enough to keep us apart, or can enough common ground be found to bring us together?”
Where it is just my opinion which I know from experience can change, then I do not feel it is important enough to keep me from engaging with someone (who’s thoughts may be very different to mine, but who really wants the same thing as me.)
For sure to me it is a fine line, but vulnerability is always a risk.