Among the elements of murder as defined in the Texas Penal Code is one knowingly and recklessly taking a life. Thus, Texas does recognize drunk driving with that result as non-capital murder. In fact, a vehicle driven by a drunk driver is also recognized as a deadly weapon.
I support that. However, I don't support it as a capital offense since I don't completely trust our justice system to end a life based on its findings.
Basically though, I am in agreement with your take on drunk drivers. Drunk driving does not have to take place. I've never done it and I won't do it. I've never driven a vehicle after drinking even though I only have a glass of wine from time to time. As far as that Jackass goes, he will never threaten anyone's life ever again. He's where he belongs.