Obelisk, you're certainly on the losing end of this situation, and it's going to take you some time to lick your wounds and recuperate. However, I think the denunciation was an important step for you on this path, and for that, I do commend you. What was done by the members who abruptly left your alliance was wrong, and I also think that the abrupt cancellation of treaties was wrong. BK and TCW were treatied to Obelisk, not to the members who left, and to abandon you (as you phrased it, in your time of need) was far from, in my opinion, respectable.
Everyone who's buddy-buddy here has no problem turning a blind eye to what was, essentially, a series of dick moves. They'll laugh and poke fun at you. They may have some fair criticisms of your leadership, or your foreign relations decisions, but they don't have any fair defenses for their actions.