I took in some Foxx News during and shortly after January 6, just to see what their take was. I really felt this network was struggling with how to report that day. Eventually Foxx took the wrong pill.
Your analysis of the race-related stories was quite interesting. There probably is someone studying the coverage of the major networks and making the same connections as you. Foxx is providing stories that appeal to people with a racist streak in them.
Obviously, this consumer group is large enough to justify advertisers to chase after.