Why did the Mexicans fight the Spanish?

The Mexican War of Independence (1810–1821) was a war between the people of Mexico and the Spanish colonial government. Spain was busy fighting for its independence against the invading First French Empire during the Peninsular War and most of Latin America revolted.

The Mexican War of Independence (1810–1821) was a war between the people of Mexico and the Spanish colonial government. ... Spain was busy fighting for its independence against the invading First French Empire during the Peninsular War and most of Latin America revolted.

Explanation:

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.