It's baked into the founding of the country. A bunch of folks arrived in a place where people were living and decided those people were less than human and kill

It's baked into the founding of the country. A bunch of folks arrived in a place where people were living and decided those people were less than human and killed them or moved them away from their homes (often by signing contracts they had no intention of upholding). Then, we captured a bunch of people from somewhere far away and moved them here for free labor. After the war we fought to end that, many places passed a lot of unconstitutional laws to continue to make their lives miserable. It's no surprise to me that, never having reckoned with all of that, the general American attitude is entitled and thoughtless.