The lurch was the abandonment of all pretense on racism and white supremacy by Trump followed by the silent acceptance of the Republican leadership. Racism has been accepted from the establishment of the United States. Despite a brutal war fought over it there was no effort to eliminate it. Ending slavery was “good enough’ although that had been done in the British Empire in 1805.
The difference is the last fifty years of policy to not mention racism or acknowledge it without stating that it unacceptable. We now have a fascist and openly white supremacist president who regularly threatens our Congressional representatives as foreign and non-white. This will accelerate acts of racist hate and increase the rate of racial murders and mass murders in the country.
That situation now demands, not only impeachment, but criminal indictment. Since neither will happen in a decayed and collapsing system these people, all of them, need to be forced form office by public demand.