This was a valid point to make as these chaotic protests were accompanied by more organized efforts that spoke to White people feeling threatened.
One of the better known groups to oppose Judge Garrett's court-ordered busing was ROAR (Restore Our Alienated Rights). This group went as far as to propose a constitutional amendment to reverse Garrett's ruling. The logo of this group (pictured above) is a fierce lion clutching a school bus between its claws. As the name, Restore Our Alienated Rights, implies, this group viewed Black equality as an attack on their rights. Like many White protesters of civil rights efforts, they viewed equality as a zero-sum game.
Throughout the history of the United States, efforts for Blacks to have equal access to resources, protections and opportunities have been met with this kind of response from racists. They cite the need to protect their virtues, their children and their way of life. Even in modern day debates over the removal of the Confederate flag from public and government own spaces have been met with arguments that the flag represents the history and culture of White Americans and that its presence in these spaces is a celebration of that. Those in favor of it pretend as though its very existence is not about the enslavement of African Americans and claim that removal of the flag is an attack on them and their culture.
Today the website of First Parish Dorchester has a section about their background where hey talk about important events in their congregations history. They mention that they were one of the five churches to found Harvard College, and even mention one of their reverends who was dedicated to abolition. There is no mention however of the role they played in the Busing Riots in the 70's.