Texas, by itself, would be comparable to Australia. A little larger in population, a little small economy (about 14th). We have oil, natural gas, high tech, agriculture. It would be very viable as a stand alone country. And it would be growing very fast with business friendly policies.
Of course, we would have a few friends who would like to tag along, I’m thinking OK for one. Add up a few contiguous states and we would have a very powerful country well into the top 10 and fast growing.
I live in Texas pretty close to the OK border.
I lived there while in law school.
My whole family (all Texans) supports the idea that if our liberty is more important to loyalty.
In other words we aren’t leaving the US, the US left us.