No, everything you describe is a political grievance, and should therefore be addressed at: (1) the ballot box, (2) in court if there's a constitutional issue, or (3) as a last resort, as I said, through impeachment which never happened.
No one is above the law. But you need to show where Obama actually broke a law rather than just took an action you didn't like. I don't really have time to rebut you point by point, but I'll just say the college campuses thing and some of your other complaints have nothing to do with the President or else are decisions equally attributable to Congress.
Prosecuting former Presidents after they leave office can be done in theory, but it is not generally wise as it is something that usually takes place in Banana Republics. There's a serious risk that trumped-up charges or political bias would infect the proceedings as you yourself are demonstrating.
It's also worth mentioning Trump himself has issued unconstitutional executive orders. It's troubling, but I wouldn't say that makes him a "traitor." The proper method of challenging these actions is in court. Various groups have done so, and succeeded. Not gonna be comprehensive, but here's one that was easy to find: https://www.thedailybeast.com/judge-overturns-trumps-executive-orders-on-firing-federal-workers
And here's a full list of executive actions by Trump that you can peruse and determine whether you find any of it objectionable.
https://en.wikipedia.org/wiki/List_of_executive_actions_by_Donald_Trump
The one thing I'll agree with you on is that Republicans have supported many of the same things you mention, or else are guilty of the same types of things like fanning racial hatred.
How you can conclude Obama is guilty of fanning racial hate while Trump, who's said all sorts of inflammatory things about race, is not, not sure.