I don't think there's a good chance that Obama himself would ever be charged, probably with anything, much less treason. Not that I don't think he deserves it, because he very well might, but just because it would not be considered healthy for the nation, and would probably be avoided. Such reasoning might prevent us from ever knowing the truth about the birth certificate controversy.
I know that's hard to accept, as true and fair, but we have to be cognizant of such things, and I actually do believe we should proceed cautiously when charging the previous Presidential administration of crimes, less that set a precedent going forward. There are nasty liberals on TV regularly stating they can't wait until they control the White House so that Trump and his family can be prosecuted after he leaves office, whether he is impeached or not.
If that were to become a pattern or trend in our future, we truly could devolve into future abuses of law enforcement to punish our political enemies. Therefore, I predict treason won't be charged, whether it should be, or not. We'll be lucky to get anyone high up in the administration charged, such as the cabinet members, due to political correctness, Democratic dishonesty, and eventual Republican capitulation. But who is the most likely to be charged, are the crooked officials in the DOJ, and the White House officials who pulled their levers. They are the ones responsible for enforcing the laws, so if they circumvented them instead, it's easier to prove, and less excuses can be made.
But we're a long way even from there at this point, with an AG with his arms tied behind his back, and a special counsel investigating the current President with many expecting him to be the one facing legal charges. That's why solidarity in our opposition to the special counsel is so important, as is getting a fully functional AG in position despite our personal fondness of Sessions.
You make excellent arguments concerning the good of the nation; however, your conclusion (of opposing Mueller) is not valid if in fact (as I believe) the Mueller investigation has already turned to Hillary and other matters, possibly including Fusion, illegal use of FISA and surveillance of Americans, and also U-1.
Certainly the I-G report is going to blister the Obama Administration, and right behind it will come the new email and Awan indictments.
I could see Hillary ending up, like Nixon, as an unindicted co-conspirator (for the “good of the nation”), and certainly Obama is off limits unless someone can reveal his secret Swiss Bank accounts filled with Iranian cash.
I think Sessions, Rosenstein, Wray, Mueller and Horowitz will all prove to be great patriots trying to remove a massive malignancy.
I would like to see the maximum penalties for the likes of McCabe, Ohrs, Steele, the FusionGPS people, DWS (and others involved in Awan scandal),and Strzok.
Again, time will tell.