Texas — In rural Borden County, 12 people signed up for Obamacare this year. Livid over the government telling them they must buy something and loath to take anything that looks like a “handout,” the uninsured here are likely to stay that way. As Obamacare’s third open enrollment season began Sunday, this rock-solid conservative community of about 650 people offers a window into the challenges health law advocates face to expand coverage around the country.