ended the Mexican constitution, the people of Texas had enough. The fight for freedom fro Mexico would now begin.

White Texans saw themselves as culturally American, not Mexican. They spoke English, not Spanish, and felt a much closer affinity with the United States than with Mexico. The stark cultural differences extended to the issue of slavery. Slavery was illegal in Mexico, yet the vast majority of white Texans supported the institution. Many American settlers coming into Texas had brought their slaves with them, and were reluctant to give them up.

As with the rest of the United States, slavery was closely linked to the wider issue of states' rights. The 1824 Mexican Constitution had granted the Texans a fair degree of control over their own affairs. Yet it was subsequently abolished by the Mexican government, which gave itself more power and control, much to the outrage of the Texan public. The abolition of the 1824 Constitution was indicative of the chronic instability of the Mexican political system. Texans increasingly felt that there was no one they could turn to in order to protect their interests. They certainly couldn't rely on the chaotic central administration in Mexico City with its rapid turnover of presidents.

In economic terms, Texas benefited little from being part of Mexico. Most of the state's trade was with the United States, and so inevitably, close economic ties developed. As with many parts of the South, cotton was a vitally important cash crop for Texas. But it was difficult to transport to Mexican territory on account of the vast tracts of arid desert that separated Texas from Mexico proper. It was much easier to transport cotton, as with most other goods, downstream to American ports such as New Orleans.

The government in Mexico City was having a hard time administering its northern territories.  While Mexico initially welcomed the Americans, they wanted them to become Mexican citizens, take up the Catholic faith, and prohibit slavery.  The Americans, many of whom were raised in Protestant homes who came to Texas with the hope of gaining cheap land for cotton, did not want to follow Mexico's rules.  Santa Ana, dictator of Mexico, sought to control the Texans more and force them to submit.  The Texans wanted to create a system of governance similar to what they left in the United States.  This led to the push for Texans to gain their independence from Mexico.  The Texans saw the Mexican government as just as aloof as the British government the colonists faced during the American Revolution.  It placed what they perceived to be arbitrary laws, wanted to control their religious beliefs, and provided no security from the Comanche who would be a problem in the area for decades.  The Texans therefore sought self-government.  

There are two related reasons for this. 

First, there was a serious conflict in Mexico between those who wanted the federal government to be strong and those who wanted more states’ rights.  Many Texans (both of American descent and of Mexican descent) were in favor of states’ rights.  When Santa Anna tried to take more power for the central government, they rebelled.

Second, the American Texans simply did not want to adhere to Mexican laws.  They did not want to do things like becoming Catholic (which they had promised to do on coming to Mexico) or giving up their slaves (slavery was against Mexican law). 

Thus, Texas rebelled partly because of internal Mexican politics and partly because of the attitudes of the American settlers.