Maybe she’s unaware that the defenders of the Alamo were fighting as Mexicans to restore the Mexican constitution of 1824, which the government of Antonio López de Santa Anna had thrown out in 1835. After all, the battle began before Texas declared its independence.
And further, a few years later, General Winfield Scott and his Aide de Camp Captain Robert E Lee successfully captured Mexico City after a campaign that defeated Mexico’s finest from Yucatan inland to the Halls O Montezuma.
President James K Polk a great Tennessean, determined Mexico was not worth having and abandoned his win after deposing Santa Anna for the second time.
Not really. They spun it this way for a while, but it was a very open secret that the Anglo settlers pretty much all wanted to eventually be annexed by the US.
Texas was not the only state in Mexico to revolt, after Santa Anna’s coup. It was just the only state that won.
Mexico would have been far better off if the other rebelling states had won as well. And better still had Santa Anna’s junta been driven from power and the Mexican Constitution restored.