Taco Bell isn’t Tex-Mex, it’s corporatized and white-washed fast food. You won’t find Tex-Mex in California... that’s kind of the point.
I appreciate many different cuisines, so I am not saying Tex-Mex is better than Cali-Mex, just that they’re different. Bringing Taco Bell into the equation and saying it’s representative is deeply insulting to Tex-Mex, however.