To avoid having to carry Texas spammers, Texas bot herders and Texas neo-nazis that will alienate everyone, Texans and non-Texans alike. There are many, many more non-Texans in the USA, much less the whole world.
That's a real problem with national or international corporations that have a lot of monopoly power. They don't have to service everyone, and if you don't fit their idea of maximum profit, you don't get serviced.
I guess Texans who feel cut-out of modern discourse could use VPNs to appear to be from Connecticut or New York City.
https://www.bbc.co.uk/news/world-europe-44248448