Wanderlust World Wanderlust World While slavery played a role in the lead-up to the Texas Revolution, the primary cause was disagreement with Mexican government control and a desire for settlers' political autonomy. American settlers in Texas resented the abolition of slavery, but this was one among several grievances, including restrictions on American immigration, tariffs, and taxes imposed by Mexico. Many settlers supported eventual annexation to the U.S., but saw political independence first as a way to preserve slavery. However, not all Texans or revolution supporters were committed to perpetuating enslavement.