Yesterday's demonstrators carried a banner reading "We are families too" and placards reading "I respect your family, respect mine."
On Saturday, marches were held in several Mexican cities opposing same-sex marriage. White-clad demonstrators chanted "Children need a father and a mother!" and "Wake up and defend the family."
In May, President Enrique Pena Nieto proposed legalizing same-sex marriage nationwide. It is currently legal only in some places such as Mexico City, the northern state of Coahuila and Quintana Roo state on the Caribbean coast.