Well, you're lucky...you don't have to be born here to be a Texan. Matter of fact, Trump's got it right. Being born in America doesn't make you a citizen, and being born in Texas doesn't make you a Texan. Texas is a "state of mind".
I wasn't born here either I carved GTT on my door at age 19 and got to Texas as soon as I could. Just remember animals don't crap where they eat. A lot of Transplants should learn this rule.