Is there truth to this claim?
https://www.texasmonthly.com/the-daily-post/is-texas-southern-western-or-truly-a-lone-star/
I recently answered a question that might interest you, on the very positive presence of Texas in, yes, Stoker's original Dracula. If not about Texas culture per se, it certainly involves the reputation of Texas in the U.S. and abroad--not just as Wild Western, but as the face, the embodiment, of the frontier.