No. The whole idea is to create a better whole from the parts. You cannot just pick up your toys and go play.
And where all you turn for trade? Mexico? Half of Mexico is already in Texas.
The whole was only formed
AT THE CONSENT OF THE PARTS.
Consent can inherently be withdrawn.
The sovereignty of the state superceded the sovereignty of the “whole”.
And why would the remaining states not trade with the Republic of Texas? I’m sure they’d give us some good deals.
“And where all you turn for trade?”
Texas already exports more high-tech goods and services than any state, including that one that has silly con valley.
If Texas were its own country, it would be the 6th largest oil producing nation in the world. The Texas-less USA would need some of that oil, especially since it depends on it right now.
The Texas-less USA would need Texas more than vice-versa.