Is "meatie" or "carnist" really a slur though? Those seem benign at worst and mildly accurate at best. Who is throwing a fit over that?

"No no, you have to protect the feelings of "meat eaters" and "carnivores" by using the full word." ??? Like.. why is this the hill people die on?

I agree that feeding a cat a vegan or vegetarian diet is still animal abuse, though. They're not omnivores like us. They're obligate carnivores, and pretending they're not is abusive.