It was not about what reasonable people think at this point, it’s about what they do and who they enable to enact power. The people you mentioned have no power and are not endorsed or are told to „stand by“. This is a very significant difference. As a reminder the whole reason Biden entered the race was Charlottesville.
That isn’t what “stand by” meant, and the intent of that statement was obvious. Also, Trump repeatedly condemned the racists at Charlottesville, and not only were they not endorsed, but explicitly disavowed. Repeatedly.
Charlottesville is a good point, as it was one of the most perpetuated lies during the Biden and supporting media campaign that Trump somehow supposedly called extremists "good people" (media and Biden omitted the rest of the quote to distort what Trump said, he explicitly condemned extremists).
While that's true, I think the parent is right that the media went too far with this one. Trump did explicitly say later in the speech that he wasn't referring to the white supremacists as good people, but to others in the crowd that just wanted to protect the Lee statue.
I think you're right that people were upset with Trump for focusing on that and drawing a moral equivalence between the counter-protestors and even those willing to march with white supremacists. One could even reasonably argue that no 'good' person would choose to join a march largely inhabited by white supremacists, or even that their support of the General Lee statue was itself a racist act. But those are the points that should have been made, rather than stretching it to say Trump literally called white supremacists good people, which he didn't. There's plenty you could criticise without resorting to taking him out of context.
