Although most of the Mexican American population was deemed white by the Treaty, many continued to face discrimination in the form of Anti-Mexican sentiment, rooted in the idea that Mexicans were "too Indian" to be citizens. Despite assurances to the contrary, the property rights of formerly Mexican citizens were often not honored by the U.S. government. Continuous large-scale migration, particularly after the 1910 Mexican Revolution, added to this population. During the Great Depression, many Mexican Americans were repatriated or deported to Mexico. An estimated 355,000 to 2 million people were repatriated in total, 40 to 60% of whom were American citizens - overwhelmingly children.