As I read this thread, and many others, its clear that people are just talking right past each other, and the reason is self evident. The anti-Trump group want to define the issue as "collusion with Russians" in the broadest possible sense, in the very same way that "Russian hacking of the election" is used in the very broadest sense by Trump political opponents (whether Democrat or GOP Never-Trumpers).
However, the only collusion with Russians that matters is collusion in a crime. That's what missing in the discussion. What crimes are the Trump campaign accused of colluding in? Treason? Putting aside the extremely high burden of proof relating to such charges, it doesn't fit the facts on the best interpretation of case. Trump wanted to become President. There is ZERO evidence that he wanted the Presidency in order to grant favours to or confer benefits upon Russia. At best, his campaign team were willing to accept the help of anyone, including Russians, to win. If the Russians wanted Trump to win, that may be politically relevant (because some people would never vote for someone who the Russians preferred), but it's not a crime for a political campaign to receive information on their opponent FROM ANY SOURCE. If their source used illegal means to obtain their information, but the recipient had nothing to do with the gathering of the info, that would represent the commission of a crime by the source (and, in my opinion, perhaps an obligation on the recipient to report the crime to the FBI), but not a crime on the part of the recipient.
In my view, the media and others who are pushing this charade forward will eventually have to come to the reckoning that there was no crime involved, and that, as unsavoury as having Russians wanting you to win an election may be, it's no more unsavoury than the various nefarious countries that wanted Clinton to win (for their own nefarious reasons).