Oh come on, are you seriously saying that there is no level of collusion with foreign powers that would merit action by the president? You're not even arguing the line wasn't crossed in this case, you're arguing there is no line to begin with. The Russians have played us like a fiddle through this whole thing and made us look like fools on the world stage. There is no outcome to any of this that does not result in serious damage to the world order.
Besides, Obama can act unilaterally, hence the Russian sanctions. The problem was that he decided to take action after it was far too late. The North Korea hack of a foreign company got more of an immediate and pronounced public response than the Russian attack on our democratic system of governance. It's called cyber-warfare for a reason, Obama should have responded as such.
Any colllusion is too much, but good luck proving it. please remember there was no evidence then (and sadly now may never be), just a dossier. And the damage was mostly done by the time we knew for sure what was going on. It all,would have been seen as a partisan hit job, and one that was probably unnecessary since all the polls had him losing and the damage had mostly already been done. In hindsight, yes Obama should have done more because A. We know Trump wins despite all the polls predicting he loses, and B. By some super narrow margins that hitting him with treason might have been enough to tip the scale, or at least take time away from HER EMAILS!!!!! In the news.
But if you don't think he's going to win, it just galvanizes the right (slightly more) against Hillary, and creates a massive international crisis (because what they have done could be considered an act of wAr) that she has to deal with day 1, with an already hostile republican congress that now think Russia is their bff since Obama clearly hates them. Sadly she didn't win, but I don't blame Obama for doing it.
And after the election, well see my first post. Your right: there is no outcome that isn't shit. But Obama playing nice And then going into hiding after meant they could rally against him, and stretch out this fight far longer then it should have otherwise.