You can feel free to provide the evidence of Nancy Pelosi admitting that it was her fault January 6 occurred. Another topic on which I will wait forever. The Capitol Police are the ones who would have been responsible for advising her to call out the Guard (this is pretty obvious). If there's documentation that they did and she declined, I'd love that as well. This is as I understand things:
Numerous government investigations have established that law enforcement agencies gravely misjudged the threat that the Jan. 6 protests could turn violent. They have also come to general agreement on one fact: Law enforcement and military officials planning for Jan. 6 thought that proactively mobilizing the National Guard was a bad idea. The image of armed troops surrounding the Capitol, they believed, was incongruous with a ceremony cementing a peaceful transfer of power.
As I believe I stated/implied, Donald Trump had every opportunity to make his way over to the Capitol (or even get on TV) and demand the rioting stop to allow the vote on the transfer of power to proceed. Instead he dithered for hours before the Guard was dispatched (by then I believe the rioting had been quelled and some of the lack of coordination did not rest entirely with Trump). Trump had control over the crowd because they believed they were acting on his behalf (now perhaps you have a different insight than I do and you think something else was driving the riot, I'm all ears).
But let me lay out the sequence of events: (a) Trump goes on national TV at 3 a.m. the morning after the election and declares himself the winner (btw, I basically knew he'd lost by this time); (b) Trump spends two months filing failed lawsuits, demanding a re-vote and recounts, and otherwise spinning lies about the election; (c) Trump and his people coordinate a rally on January 6th, 2025 near the Capitol, the exact day Congress votes to certify Trump's loss; (d) Trump speaks at said rally; (e) rallygoers quite literally leave the speech and flood towards the Capitol, upon which a massive riot breaks out; (f) Trump dithers for 4 hours before taking action, by the conclusion of which the riot is over; and (g) the guy with horns sacks the Capitol and some dude with a beard steals Pelosi's lectern. OK ... (g) is only half true and the lectern dude was hilarious.
That said, the sequence of events I've laid out isn't really disputable. You are arguing that the cutoff for Trump responsibility is (d), absolving him from (e) because he didn't call for a riot (stipulated ... he didn't call for a riot). I am stating that I firmly believe that (e) naturally flowed from (a) to (d), and that Trump absolutely had an obligation to act quickly if he didn't want responsibility for (e). He did not do so, and with the benefit of hindsight he's pardoned almost everyone involved with (e). To me, this defines morally culpable and as I genuinely do believe the violent rioters were committing treason (not the idiots milling around the Capitol entrance of the Pelosi lectern guy).
Obviously you are far more charitable to both Trump and presumably the rioters. I don't think the verdict of history will ultimately agree with that, hopefully were both around to know.