Well, not long before I wrote my letter I sat in a sports stadium in a school where the crowd of students called out racial epithets when a boy of African descent came onto the field. In that same school, racial epithets were used routinely in addressing and referring to an Indigenous girl in my classroom.Yes I recall you mentioning that.
Sure and neither do yours. But I definitely don't recall this conversation being a big thing at that time at all (certainly not in the mainstream gaming community). Not like it is now
Some of those students also played D&D. I don't think they worried about the racist implications of some fantasy tropes! But what does that tell us?