I find myself dismayed by many aspects of this thread, though I am hard pressed to find anything to say that I have not already said many times, on this listserv and elsewhere. Anyone who thinks that there is one simple moral principle that can be applied like a blanket to cover all the property disputes that arise from the current unpleasantness is just not looking at reality. No two of these situations are exactly alike. The history, the present human dynamics, the financial paper trail, and a host of other factors, all contribute to the moral calculus in each individual case.
Take, for example, a 150-year old physical plant that was paid for by long-departed donors. Yes, they clearly intended to advance the ministry of the Episcopal Church in their location--the founding documents probably say as much explicitly--so there is *prima facie* a strong presumption in favor of their stated wishes being honored. But it is more than plausible to counter that they would not recognize the Episcopal Church today as the same one they were intending to perpetuate, and not particularly because of any of the currently controverted issues. The mere fact that a set of chasubles fills the sacristy drawers may be enough to cause many of them to retrospectively rethink their largesse if such were possible. One cannot assume that the great-grandparents of today's senior parishioners would have one opinion or the other about "leaving" or "staying" in TEC as it is today.
So, the repeated mantra of "fiduciary responsibility" wears a little thin. One must turn to other factors to make a prudent and sensible decision. If a majority of the present active congregation is in favor of leaving, but a significant minority is in favor of staying, the latter group should certainly not be turned out into the street--or the VFW hall. IMHO, too little imagination and charity have been exhibited in such situations; the winner-take-all mentality has been destructive. (The Colorado Springs situation seems a case-in-point here.)
On the other hand, when a congregation is a relatively recent plant and the facilities have been paid for by parishioners who are more or less the present congregation, and the diocese has made no investment beyond the brand name, and there is an overwhelming vote in favor of leaving, it strikes me as beyond inane to take those folks to court. Justice is just a matter of common sense for those with open eyes.
Then there are the "bite my nose to spite my face" cases where any victory on the part of TEC is pyrrhic because they're left with a church and a steeple but when they open the doors there are no people. Just heating and lawn care bills--and in many cases, a mortgage. Meanwhile, the people that could be worshiping and serving there are...you guessed it...celebrating the Eucharist in the VFW hall on Sunday mornings. That's just idiotic. My former parish is in one of the four departed dioceses. Between my departure and my successor's arrival they eradicated the word "Episcopal" anywhere it was found and replaced it with "Anglican." Sooner or later, Mr Beers will get around to suing them. If he wins, he'll have a very handsome set of buildings dating back to the late 19th century and which are a collective black hole for maintenance dollars. I hope he enjoys watching them fall apart, because my guess is that even the residents of the columbarium will have relocated by then.
This is a complicated mess. It requires a complicated cleanup. Nostrums about thievery are not helpful.