Agreed with all of this. Also, it is my understanding that Patriarch Bartholomew is largely unpopular in Greece, especially among lay people, but, I would also imagine he is equally unpopular among the clergy (not sure about the bishops) and I have seen that he is not commemorated in many places on Mt. Athos.
Likewise, if he ever made a power play for Rome, you can bet that he would lose the entirety of the Elder Ephraim monasteries in America and I would imagine a good portion of GOARCH parishes, at least outside of the ethnic Greek parishes in the Northeast and Chicago. I get the impression that many, many people in the GOA (a lot of clergy included) are already extremely tired of Archbishop Elpidophoros and his shenanigans, not to mention the St. Nicholas "shrine" money debacle, that it would not take very much to push them over the edge.
But, that is just my take, but, we shall see what goes on come August when he visits Ukraine. If he formally excommunicates Metropolitan Onuphry like some have suspected he will, then all bets are off.