Had he not been the father of a Black child he wouldn't understand. Dude called him a n*gger lover and he responds, "well i guess I am, I have a beautiful African American daughter", basically agreeing that his daughter is in fact a n*gger.
This guy's genuinely hurt and I empathize with what he's dealing with, but this child will continue having to deal with ignorance like this by virtue of her proximity to whiteness while being Black, I just pray she perseveres.
Cac didn't give a fukk because he works for himself and fellow whites won't stop doing business with him because he's racist, there will be very little consequence for him outside of being doxed and shamed online, but in the real world, he'll continue being able to support his family while being openly racist and not giving any fukks.