Collusion is not a crime began with Giuliani and his big mouth. Trump reiterated it in a text this morning. CNN has an story on their website today which suggests that Mueller likely will not indict Trump with a crime and that the jury will be public opinion. The theory is that Mueller will release his findings and the result will will be a version of He said, he said. The narrative that Giuliani spins at present is one that provides Trumps base with ammunition (factual or not) to contest whatever it is that Mueller finds. Clearly, Mueller has remained very silent on the developments of his ongoing investigation. In that sense Trump is winning because everything he or his people say is more than the other side is offereing. In an attempt to diminishing the veracity of all media reports (barring Fox News),by discounting any actions by the trump organization or campaign as only politics as usual, and by claiming everything trump does as being more honorable to anything Obama or Hillary did, Giuliani distracts from the facts and keeps the Trump base content. He and trump are, in a sense, controlling the story (for now).
In some respects, my posting this thread makes me guilty of falling for this distraction. It is probably best that Giuliani be ignored by those interested in the facts.
But, yes, if the talking point about which you speak is that collusion is not a crime, then I agree, its meaningless, and that was the initial motivation for this post.