There's a weird sect of white Texans who call themselves Tejanos as a constructed cultural identity that has nothing to do with historical Tejanos.

Very much the kind of people who will sit in a truck stop diner for eight hours a day explaining to anyone who will listen that Texas is the only state that can legally secede because blah blah blah the republic blah blah Texas is actually its own nation, technically blah blah blah the Texas Rangers actually outrank the feds because precedence blah blah blah

...tejanos around here can be of any ethnicity: it's considered a cultural identity (not unlike hispanic or latino) for folks with deep roots in the original regional melting-pot but it's not synonymous with the texian or broader post-revolutionary texan population...