Things that are so obvious and ingrained that no one even thinks about them.
Here’s a few:
All US americans can go to Mexico EASILY. You’re supposed to have a passport but you don’t even need one (for car/foot crossing). Versus, it’s really hard for Mexicans, who aren’t wealthy, to secure a VISA to enter the US. I’m sure there are corollaries in other geo-regions.
Another one is wealthy countries having access to vaccines far ahead of “poor” countries.
In US, we might pay lip service to equal child-hood education but most of the funding pulls from local taxes so some kids might receive ~$10000 in spending while another receives $2000. I’m not looking it up at the moment, but I’m SURE there are strong racial stratas.
Most of the world never did settler colonialism you genocide apologist
Many civilizations came and went over the ages, displaced by integration into other civilizations or straight up genocide. Most of these we have little record of, other than a few shards of pottery or other artifacts. I'm not advocating for that approach, but you also can't look at history through some kind of idealistic lens, acting like people were any different back then.