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.

Uber did it in Austin

Because the outcome would be the repeal of the law