There's also more than ample legal precedent that only the US federal government has the authority to regulate inter-state commerce, which is clearly what .COM is as an entity run by VeriSign, and internet traffic/telecommunications traffic that crosses state borders. There's such a vast body of law in telecom law that the federal government regulates long distance telecommunications traffic that I could paste citations to dozens of court cases going back 75 years. International internet traffic from an entity whose servers aren't in Texas isn't subject to Texas jurisdiction.