Grace Church High School is a $57,000-per-year private school in Manhattan
Paul Rossi, a math teacher, publicly blasted his employer in a blog post Tuesday
He accused the school of 'indoctrinating' students with 'anti-racism' ideology that he says induces shame in white students
Rossi also said the school wanted teachers to embrace 'antiracism' training and that they are required to 'treat students differently on the basis of race'
Following the scathing post, principal George P. Davison sent a letter to parents saying he was 'disappointed' Rossi had aired his 'differences' in a public forum
Davison failed to address any of the claims raised by Rossi