Are Trump Collusion Claims A Crucial Experiment?

So far as I can tell, the general sentiment on the left is: Trump is very obviously guilty of collusion. And the sentiment on the right is: This is very obviously a witch-hunt. (So: he obviously didn't collude.)
   This seems to me to be something akin to a crucial experiment. Somebody's really, really wrong. When we find out which side it is, that will tell us something important about the comparative degrees of delusional-ness of the two sides.
   OTOH, one might say: both sides are nuts. One side will just (probably) get luckier than the other. Lucky and nuts is still nuts.
   Which...seems pretty plausible.
   So maybe we can't learn anything comparative. But at least one side will at least have to admit that it was delusional.
   Right?

   The comparative impulse in politics, I'm finally realizing (or: believing, at least) is very bad. Both sides seem insane to me right now...though, of course, I think that the PC/SJ left is completely off the scale crazy. Even Trump isn't (IMO) as stupid/nuts as the vocal vanguard of the left right now.
   But insisting on comparisons just fans the flames of partisan competition. Trump's a horrible dude with some good policies. The PC left is utterly insane, but right about a few things. Sane people should be deeply and passionately dedicated to getting rid of both of them. Comparative judgments are, perhaps, unhelpful.