I think, in this particular case, the people that would move from NY to Texas to preserve their 2nd amendment rights are likely Republican voters anyway. Texans need to start thinking about importing good voters and this seems like a good way. Remember, Texas has an exploding Hispanic population and a lot of other people coming only for the jobs - those are the types that are like locusts and bring their bad voting habits with them. People who move solely over guns are mostly going to be high information voters that know not to cast ballots for Democrats.
I came for the jobs too! Voted for Cruz, I did.
Some of us trapped in liberal hells are more than willing to contribute to making Texas great!