Besides which, Twitter need only open a nominal office in each state, make 50 different Twitter editions, and then choose which ones get to talk to each other. All of those little twitters will be less than 50m users, because no state has 50m people.
One thing is for certain, this law will not work out the way they planned. That’s inevitable because the government doesn’t know Twitter better than Twitter.
Most likely outcome, though, is that moderation changes so that the rules are different for users with Texas IPs, and those normal “censorship” outcomes populate for anyone not on a Texas IP address.
So not only are they at fault if they prevent your tweets from being seen, they're at fault if they prevent someone in Texas seeing your tweets. Which would prevent what you're suggesting.