Why did many Anglo American settlers from the southern states migrate to Texas in the 1820s and 2849s?

In eastern Texas 20,000 settlers and 1,000 slaves outnumbered the 5,000 Mexicans in the area by 1830. The settlers showed little interest in Catholicism and other aspects of Mexican culture. The expansion was a quest for a better chance and more living room and in many ways the Americans kept their culture. Economic opportunities marked mainly the settlers, not cultural preferences This was perhaps one of the reasons why Texas later became choose American annexation.