MEXICO CITY, July 29, 2015 (LifeSiteNews) – Tens of thousands took to the streets of major Mexican cities on Saturday under the slogan “Mexico is One for the Children,” to demand the government to respect state constitutions that define marriage as the union of one man and one woman, after a recent Supreme Court ruling legalized same-sex unions throughout the country.

The marches took place in the cities of Mexico City, Monterrey, Guadalajara, Culiacán, Los Mochis, Aguascalientes, Ciudad Juárez, among others. In Guadalajara, which had the most participants, organizers reported an attendance of over 80,000, while police reported 37,000.

“We are not against any person, we are against this Supreme Court imposition,” said Sofia Miranda, one of the organizers, in an open letter to media who were criticizing the cause. This, she continued, “opens the door to gender ideology and will destabilize our society and damage our children. This is what we don’t want.”

Marchers were also demanding their parental rights be recognized, as Congress is seeking to pass a national law which will “guarantee the access to contraceptive methods” without parental consent to all girls. The law also states all children have a “right to intimacy,” they should not be discriminated against on the basis of their “sexual preference” and that the state will provide “education and services in regards to sexual and reproductive health” to all children.

“We are asking for the right to educate our own children,” said Adriana Ojeda, head of the movement Si Es Mi Hijo Yo Lo Educo (If it’s my child I will educate him/her), in an interview with LifeSiteNews. “Mexico has signed several international treaties which guarantee us this right. The [new] law is violating them.”

The state of Sinaloa, from which Ojeda is native, is one of the seven states that still haven’t approved the law. These states are asking for modifications in some of the articles to “explicitly ensure our rights as parents,” said Ojeda.

The Sinaloan Congress will vote on Thursday on whether to accept the proposed modifications or pass the law with the original text.

“We see how our children are being attacked by the culture of death and we need to protect them,” said Edgar Fernandez, one of the participants in the Guadalajara march to LifeSiteNews. “From the children who are aborted, the ones who are abandoned or suffer physical or sexual abuse, to those who are systematically bombarded by media who want to indoctrinate them in gender ideology.”

“We need to reinforce the important role that traditional family plays in the formation of children so that we may educate them in values that will benefit society as a whole, he concluded.

Several other cities will march for the same cause on August 15.