Is It Legal?
What examples give the best roadmap for Texas?
The best roadmap is not a single country but a set of modern examples that each prove a different piece of the path. Brexit proves a people can vote to leave a large union. Scotland and Quebec prove the parent country will agree in advance to hold the vote. The Velvet Divorce proves the split can be calm and the assets divided by agreement. The breakup of the Soviet Union proves even a superpower can let go peacefully. The Compacts of Free Association prove independence can come with a friendly, ongoing partnership. Put them together and you have the Texas plan, already tested in the real world, piece by piece.
Brexit: a people can vote to leave a large union, and it can be carried out
Start with the one in our name. Brexit established that an ordinary electorate can vote to leave a large political union, that the union will hold the vote and honor it, and that the exit is carried out through an orderly process of notice, negotiation, and transition. That is the spine of the whole plan: the vote decides, and a negotiated transition implements it. Brexit is the proof of concept for the headline question, can it even be done, and the answer is yes.
Scotland and Quebec: the parent country agrees in advance to hold the vote
The biggest practical hurdle is getting a legitimate vote at all, and Scotland and Quebec show it can be cleared. In both cases, the central government accepted beforehand that the region had the standing to put independence to its people and that a yes would lead to a negotiated separation. Both votes went the other way, but that is not the point. The point is that the mechanism for a lawful, recognized independence referendum exists and is well understood in the democratic world. Texas's task is to win the vote those campaigns merely held, and the path to holding it is established.
The Velvet Divorce: the split can be calm and the assets divided by agreement
Once a vote carries, the next fear is chaos, and Czechoslovakia answers it. The Velvet Divorce shows that two nations can separate with no violence, divide the assets and institutions of the old union by negotiation, and win quick international recognition. It is the model for the day after: businesslike, lawful, and calm. The hard questions of separating a country have negotiated answers, and the Velvet Divorce is the proof.
The Soviet breakup: even a superpower lets go without war
The deepest fear is force, and the end of the Soviet Union puts it to rest. The largest, most heavily armed state on the planet dissolved into fifteen nations peacefully, by agreement, to avoid the bloodshed its own leaders saw elsewhere. If that breakup stayed peaceful, the claim that a constitutional United States must answer a peaceful Texas vote with violence does not hold. This is the example that anchors the promise of a peaceful path.
The Compacts of Free Association: independence with a friendly partnership
The final piece is the relationship afterward, and the Pacific compacts show what it can look like. Micronesia, the Marshall Islands, and Palau became fully sovereign, UN-recognized nations while keeping close, negotiated ties with the United States on trade, travel, and defense. That is the destination Texas seeks: its own nation, governing itself, with a friendly and cooperative relationship with its largest neighbor. Independence does not mean enmity. These nations prove it can mean partnership.
Why the composite roadmap beats any single case
No country matches Texas exactly, and that is fine, because Texas does not need a twin. It needs proof that each step works, and each step has a precedent: the vote (Brexit), the agreed referendum (Scotland, Quebec), the calm split and asset division (Velvet Divorce), the peaceful release by a superpower (USSR), and the friendly partnership after (the compacts). And Texas brings advantages most of those examples lacked: the world's eighth-largest economy, energy the continent needs, and deep, established institutions. The roadmap is assembled from things the modern world has already done. Texas would do them from a position of unusual strength.
The bottom line
The roadmap for Texas is written across the modern record: Brexit for the vote, Scotland and Quebec for the agreed referendum, the Velvet Divorce for the calm split, the Soviet breakup for the peaceful release, and the Compacts of Free Association for the partnership that follows. Every step has been done. Texas would do them together, from higher ground than almost any nation that came before.