> For the record, virtually every source that covered the Unite the Right debacle concluded that it was conceived of, led by and attended by white supremacists, and that therefore Trump's characterization was wrong.
When it's clear to everyone that it's entirely a group of white supremacists, and someone says many of them actually are very fine people, to many that demonstrates an attempt to protect and legitimize the group and defend its atrocities by whitewashing the nature of its character.
There's a lot of historical evidence of Trump's affinity for white supremacist groups and of their affinity for him in return (https://en.m.wikipedia.org/wiki/Racial_views_of_Donald_Trump) so it's not like this was out of the blue.
Personally I would say the given context above makes Biden's statement basically correct and Snopes's tag misleading (ok, I guess I did comment on it), which is I guess subjective.