Columbus was no genocidal sociopath; he was an ambitious, expert explorer disastrously incapable of governance, whose poor decisions had consequences he could hardly have predicted.
Eliminating critical race theory and the 1619 Project wouldn't preclude teaching black history, but allow a full, complex, and truthful history to be told.
The left fears elementary students loving the United States and believing in the principles of life and liberty established by the founding fathers and endowed by God himself.