There’s been enough obloquy thrown Thanksgiving’s way this year without MSNBC’s petty revisionism, no? Yet, there it was on MSNBC’s “AM Joy” on Saturday, this time guest-hosted by Jason Johnson. As the Media Research Center reported, Johnson called Thanksgiving “colonizer Christmas” and then threw it to a panelist who managed to sink lower from there. Johnson began with the usual Centers for Disease Control and Prevention warnings against gathering for Thanksgiving this year — in some jurisdictions, Americans are restricted from gathering by law — and “urging you not to be the turkey who puts your loved ones at risk.”...