Final answer:
From a Mexican perspective, the annexation of Texas and the Mexican-American War were objectionable due to the violence involved, the threat to Mexican sovereignty, and the contentious issue of slavery expansion. The U.S. foreign policy at the time was aggressive and often dismissive towards Mexico and its people, which contributed to further political tensions.
Step-by-step explanation:
The annexation of Texas occurred in the context of U.S. westward expansion and was influenced by a variety of factors, particularly the issue of slavery. Prior to its annexation, Texas existed as the Lone Star Republic from 1836 to 1846 following a revolution against Mexican rule. During its decade as an independent nation, Texas was recognized by several countries, though its relationship with both Mexico and the United States was complex and fraught with tension.
From a Mexican perspective, the annexation of Texas and subsequent events can be seen as deeply objectionable for several reasons. The process of annexation, driven by both American and Texan expansionists, was marred by violence and represented a clear threat to Mexican territory and sovereignty. Additionally, the fact that annexation would likely lead to war with Mexico, along with the contentious subject of slavery expansion, made the situation even more contentious. The ensuing Mexican-American War, from 1846-1848, resulted in further loss of Mexican territory and population, as well as reinforcing stereotypes of Mexico and its citizens.
The annexation of Texas and the Mexican-American War from a Mexican perspective involves consideration of political tensions, the aggressive U.S. foreign policy, the quest for expansion, and the attitudes towards Mexico and its people, which were often dismissive or discriminatory.