"Taco sauce" just seems like a more Tex-Mex-inspired salsa. (At the end of the day, it still seems like a sauce/salsa.)
It's a sauce, not a salsa. There's no confusing the two. I'm not dipping my fucking tortilla chip in a sauce, it's being used to scoop up a salsa.
Good lord what has Taco Bell and Ortega done to people.