I was specifically talking about the appeal of Columbus to the white majority who believed in manifest destiny. He was the man who "discovered" this great land so that it could be taken from the savages as God intended, etc. As I said, the immigrants at the time would have not thought of it that way, but the idea that Columbus could discover a land that was already populated by people has always been linked to our country's foundational beliefs in white supremacy.
I mean, in New York, probably.
I went to elementary school in Ohio in the mid-90s, and our fifth grade students put on a play celebrating Columbus once a year. All the students got to miss class for the day and the fifth graders themselves spent several weeks only studying Columbus and preparing for the play. We never learned anything about the atrocities he committed then or at any point during my entire education in that midwest public school system.
Columbus was probably the most beloved figure to students at our elementary school because he was associated with so many positive, fun memories.
Has it probably improved since then? I certainly hope so. But all those people I went to school with, and the ones who came before me for years and years, are adults of voting age now whose education told them Columbus was a great man.