Very late, but for the love of God, make sure you raise your black child with enough respect for themselves and their race that they'll avoid debating twitter racists. Make sure your router drops requests to 4chan.org! Disable DNS over HTTPS on their devices! Run all their traffic through a proxy, MitM every request for an image and have a chat with them if you start seeing a lot of pfp sized pictures of roman statues. You need your kid to avoid these people the way they should avoid a hot stove.