Holy shit, this is such a stupid, irrelevant point, and yet I can't let it go. It's just too dumb to go unaddressed.
Yes, I am sure you believe that he called her out on where she lives and what school her children go to because he is really just concerned about how her children will feel sad when talking to black kids.
A lack of sincerity does not automatically imply a threat. And yeah, I'm sure this guy isn't sincerely concerned about how her children feel. He was obviously trying to shame her by bringing them up, and maybe that was uncalled for on his part. But it's not a threat.
The next time you're in court try ranting at a judge that you know where she lives and where her children go to school and see how that works out for you. Plenty of people would interpret that as a threat.
Whether Judge, Police Officer, Elections Official, all the same. A person in power being attacked verbally by someone who chooses to bring up that they know where their children go to school.
Yes, simply saying that you know where someone lives and where their children go to school would reasonably be interpreted as a threat, and that would be the case regardless of whether or not they held any kind of position of power. But that's not what he did. He accused an election official of enabling racism by disenfranchising voters, and asked her what that meant for her kids, who presumably went to a local high school in her town and so would see minority students on a daily basis. It matters what he said and how he said it. You can't just strip it down to what you think are the important parts and say that, well, he mentioned her town, he mentioned a school and said her kids probably go there, therefore he's threatening her kids! That's not how language and basic human communication work.