It's more of a "CYA and take the fifth" and/or lawyer up kind of approach you'd expect from a bunch of lawyers who know the potential penalties for not doing their job or worse.
Yep. In order to expose fraud that has taken place, they would have to call themselves out and admit their (at the least, tacit) complicity in the crime. This they will not do.
All of the potential motivations you cited are eminently plausible. If I were to say which factor were key in "Obama" and his handlers' success in their theft of the presidency, it was/is the racial aspect. For a whole host of reasons, nobody, and I mean NOBODY in a position to actually do anything about it wants to be responsible for discrediting/derailing America's First Black PresidentTM. It would unfortunately appear the guy is Too Black to Fail.
Classic stuff. I hope we survive it and can fully suss it out and write it down. What a story! Epic.
But, it's real and it's happening on our watch, to us, the ones who grew up learning about our nation's founding, history and heroes, listening to our parents' and grandparents' war stories and their tales of valor when they were our age and saved the world against evil, all while we grew up, getting fat and lazy and enjoying the peace and fruits of their sacrifices.
Unless we get busy, history won't be kind to us, no matter who writes it.
Prodigal children, it's time to come home...while there's still a home to come home to.