“The whole point is that we want to take up space,” Ms. Obell said. “Take the time to say black, Latinx and Asian. Say our names. Take the time to learn. Show me that you know the difference.”

“It is lazy to lump us all together as if we all face the same problems,” said Sylvia Obell, a host of the Netflix podcast “Okay, Now Listen.” “When you blend us all together like this, it’s erasure. It allows people to get away with not knowing people of color and our separate set of issues that we all face. It allows people to play it safe and not leave anyone out, and it also allows you to not have to do the work.”

“We understand that under colonialism African and Indigenous people had very different experiences,” Dr. Nelson said. “To conflate everything in one is to erase, which is the very nature of genocidal practice.”