Isn't that just an excuse to justify the scam? Texas has very low electricity prices and at the same time a growing share of renewables.
It was annexed in the mid-19th century, they abused the Yorkshire Gold way before that.
If 2 European powers had a war over a territory that is now part of a third country we would still describe the war as being between the 2 original countries. Even if other territories that weren't part of those nations at the time now are.
But yes, on the other hand we are talking specifically about Texas so maybe you're right.
On the 3rd hand the chance to get superior with the colonies should never be passed up.