If Ahmaud Arbery where white, it would be not guilty.
This I believe. Also, if Arbery were white, we wouldn't have so many freepers falling all over themselves in an effort to declare those guys guilty.
I think people are using this case to "virtue signal" about how non racist they are.
They think that by being vehement about declaring the McMichales guilty, this makes them appear to be non-racists.
Maybe to simpleminded folk. To me it makes them appear foolish.