I agree. Teaching the people all whites are inherently racist turns every complaint, criticism, even ordinary potential rudeness a white person makes toward a minority a racial attack and is asking for violence
Alternatively, it encourages white people to look at their own racism. Most people are racist, even unconsciously.
I have personal experience of that myself. I grew up in a northern Canadian and mining town. There was a reserve close to town. First Nations people would come into town. They had their own coffee shop that whites didn't go to. They had their own section at the back of the two town bars. On welfare day, they would splurge on KFC (not many food choices in the town). Sometimes First Nations people would wrestle on the sidewalks outside the bar. Sometimes they would steal perfume from my dad's drug store - he was kind in that he never called the cops on them. And they made beautiful souveniers for his store - suede the name of the two beaded on top, and little mukluks hanging from them (lots of tourists came to town in the summer for fishing).
I assume there was a residential school nearby, because First Nations did not attend our school. I remember one native-looking person who came to our school, and being so shocked. I can still see him, sitting in the back corner of class, looking so very uncomfortable.
In any case, this was before knowledge of residential schools and the harms of the Indian Act had become public knowledge. For the most part we just accepted the way things were. We didn't wonder where the First Nations lived, or how they lived, or think about their welfare. Or question why they had such problems with alcohol.
Racism can operate blindly in such a context. The status quo is thus maintained, and no one questions it.