I wish some of you having this debate can just accept that EVERYTHING you are arguing about is subjective and end the discussion there. In Kalvano's case, his views about why he hates Texas can be summed up as "well its not anything like the New England states". Well duh. You have very specific preferences that are not congruent with what the state has to offer. It's not cold here, it doesn't snow here often, and people in general are a lot more laid back and friendly/talkative (or nosy and rude, as kalvano puts it). If you would rather move to New York and pay twice the cost of living for what New York has that Texas does not, that's certainly your choice. But I really wish people would STOP judging a state on absolute terms of suckage/awsomeness based purely on subjective measurements. The reason why people bring up cost of living/low taxes so much in defense of the state is BECAUSE it is NOT subjective. Lower costs of living, in general, are a plus for EVERYONE - unless you're Kalvano. Hate the heat? Some people prefer that to the snow. Hate how "nosy" people are? Some people call that southern hospitality.
As to how "insecure" people are, i think you can attribute that to the pride that most Texans have. I have noticed this myself, but to be frank, i think the state has a lot to be proud of. Americans are proud of the fact that they overthrew the British to develop an independent nation. The same can be said of Texas and Texans in overthrowing the Mexicans for our independence. Plus, the fact that we rival California in size and consistently have one of the most robust economies in the nation gives Texans every right, in my opinion, to be proud.
One more thing to note. I find that you are very vocal in your displeasure of the state. At every chance, you make an effort to drop some disparaging remark about Texas and how much it sucks, when you yourself agree that your reasons for disliking the state are based on personal taste. Then, when people either challenge you or ask you for your reasons for disliking the state, this is somehow turned into a discussion on flawed Texan pride and snobbishness. Is it not fair that if you make disparaging statements about the state, those who love it would like to defend it? Just as some people like to incessantly defend the state, there are others (like you) who incessantly trash the state on purely subjective measures. I would argue that if you went to New York and trashed New York to a New Yorker's face, 9 out of 10 would display the same behavior that you have described. People defend what they love when they see it being attacked by flawed reasoning. I think this is true in general for all people, regardless of geography.