Do you honestly think the "primary...rigging" is anything significant? I would be willing to bet that the GOP hacks that were kept hidden for selfish reasons by Russia and Wikileaks would be at least as disgusting.
I'm more inclined to think the Republican e-mails weren't really considered "newsworthy." If they ever do get released, and considering the Russians have copies of them, they probably will be sometime decades from now. One of two outcomes will likely be discovered:
1) The Republican Party was in pretty much in chaos and disarray, starting off rather smug and secure in their support for Jeb and the other "nearly Establishment" guys being the likely candidate, with their own (far less effective) efforts to trivialize Trump. If anything, you'll probably find lots of discussions about what they can to reduce the air time Trump was getting over the other candidates. With them becoming increasingly alarmed, and things being more chaotic/disorganized as the primaries continued right up until it was already too late.
or
2) That the Republican Party is in fact bought and paid for by the US Chamber of Commerce//Fortune 500 and they were smug in "their guys" getting the nomination, and the tale the chaos that ensued as Trump came through and disrupted/destroyed all of their carefully laid plans as "the Tea Party's vengeance" came rolling through.
I mean seriously, this was discussion fodder I was posting on last spring. Most of the "Republican Base" is fully aware, and has been aware for years at this point, that "the establishment Republicans in Washington" are fundamentally disconnected from their wants and desires. Donald Trump's early successes were likely a reflection of that. The Tea Party tried in 2010, they tried again in 2012, and they were slaughtered by Party Leadership in 2014. While some remained loyal to the ideals of the Tea Party in 2016, I think most had finally reached their "F--- it!" point and voted to burn the thing down, ergo they voted for the worst primary candidate option available, Donald Trump.
Therefore, the Russians could have released the GOP e-mails also, but it just would have created a wider scandal against the Russians(dumbest move ever), and it would have accomplished exactly nothing, as the people backing Trump already knew the GOP Establishment is a heap of s---.
The only political party that wasn't disillusioned with its own leadership on a massive scale were the Democrats. So guess who they decided to undermine?
If you were the sole source of news and information about US politics I would have to believe that Democrats are evil spawn and Republicans are blessed saints. Trump is your man, the GOP is your party, I expect you to own it when the *censored* hits the fan.
Trump is looking to be very authoritarian on a number of issues, which is HIGHLY concerning. I strongly dislike crony-capitalism, regardless of who it is that is practicing it. I hated it under Obama, and I'm going to hate it under Trump.
Authoritarianism is concerning in general, regardless of who has that authority.
So there are a range of things about Trump that I likely share your concerns about. The sad thing is that some of my concerns only recently became your concerns because it's Donald Trump, rather than Mr. Obama with those powers now.