Yes, Mexico did resent the annexation of Texas. Texas was a major portion of Mexico's land, so losing Texas was a major financial loss.
After Texas gaining their independence from Mexico. Texas asked the US to annex them thus entering the union as a slave state.
Texas did.
Besides Texas, the states that had at least part of their land included in the Texas Annexation are New Mexico, Oklahoma, Kansas, Colorado, and Wyoming. The annexation involved significant territory that was originally part of the Republic of Texas before it was admitted to the United States in 1845. The boundaries of Texas at the time extended far beyond its current limits, impacting these neighboring states.
They were considered to be land grabs to achieve Manifest Destiny.
Probably land.
Thousands of Americans settled in Texas.
The United States didn't gain any land during the Texas War of independence. It annexed Texas after it had won its independence and was a free nation.
They had to go into war with Mexico to get the land.
chickens
Cheap land.
Texas had a large landmass that land hungry Americans saw as beneficial. Many Americans moved to Texas as America was moving west. At first, the Mexicans appreciated the immigration, but it was not long before Americans decided that Texas should be free of Mexico.