Some history
"News of the Alamo's fall had the opposite effect, and men flocked to join Houston's army. The New York Post editorialized that "had [Santa Anna] treated the vanquished with moderation and generosity, it would have been difficult if not impossible to awaken that general sympathy for the people of Texas which now impels so many adventurous and ardent spirits to throng to the aid of their brethren"
Santa Anna was a cruel basturd.
Santa Anna wound up trying to sell tree sap(Chicle) as chewing gum in New York City.
The key to the Alamo reference is the follow-up two months later at San Jacinto, when the Texans and a huge army of American volunteers swooped down on Santa Anna's army screaming "Remember the Alamo", and delivered a righteous obliteration.