For coups, learn from history: greater people than us have been trying to do whatever our characters attempt for quite some time, you know.
As for what's vaguely being referenced and discussed in appropriate OOC, removed contexts, I'd criticize your statement that "Not without imm support they don't," Drew. I'll highlight the important line between IMM support and IMM
participation. "Support" never was a term used to describe a force that could lend an impetus to anything.
RP changes, true enough, but so do the phrases in the Goldberg Variations. There's an art to the fugue, and there's an art to Changing the RP of an organization. I dare say the reagents for a coup would be different each time one is attempted for reasons you yourself highlight, and all the support -- all the catalysts -- in the world can't make up for limiting reagents.
Calling it a "coup" and not something more like a "history," though, betrays a certain selfish disapproval of what came before your idea(s)... and our perspectives animate our characters, and other people's characters are entitled to draw conclusions about the character based on more than what the stenographer says. Many, rightfully, elect to go on the defensive. It is no violation when someone does not take your side, especially when they're given reason to, even if you don't want them to. Even if you think your reason could beat up their reason, provided both reasons exist and are wholesomely bred.
That's not to say it isn't fun to take a risk and try to shake things up, but it certainly makes just as little sense to think a change is self-validated by nature of being a change as it is to say a group dynamic is self-validated by its own existence. People mix their labor with the game-world and produce RP and, from this, a sense of ownership in their organizations and pride in their accomplishments. It is meant to be shared, and the stories are meant to be made, not told.
It makes plenty of sense, then, that what exists would have a certain tenacity based on the will by which it came to be: it is an error to think a coup is the only roleplayable option when faced with people you do not agree with. The "me or them" mentality is incendiary, and plenty of characters -- just like people in the real world -- don't give that kind of thing the time of day. Even a simple ultimatum is a risky, perilous weapon to draw.
To inject some Fantasy into the discussion, it takes a certain kind of player to pull off the Discord of Melkor, though. Don't be discouraged: it takes a healthy cynicism and acute sympathy to truly believe one would be as dumb as some for not taking advantage of others for being so dumb and survive an encounter with an in-tune Valar all the same.
Your criticisms of your failure in this thread lack a critical element of introspective analysis, Drew, and border on libel under some readings. I just didn't expect Rynusi to be one of the ones to point that out, of all people. But as always, we seem to appear to agree on the important points.
As for that Coup...
Good luck on your next.