In running a search on the topic, I came across a wiki article, in which was stated the following:

Up to a third of female murder victims in Mexico are murdered by their current or ex-partners.[5] This violence has been attributed to the backlash theory, which alleges that as a marginalized group gains more rights in society, there is a violent backlash from their oppressors.[1] Notably, Indigenous women—who make up 15% of the population—are at a higher risk of gender-based violence like femicide due to economic marginalization and limited access to health and government protections.[6] Additionally, with geographic isolation and gender inequality, there are minimal methods of effective intervention and victim support.[7] The response from the Mexican government has been minimal; there is very little legislation protecting women.[8] This lack of response further discourages individuals or groups from speaking out about or challenging this phenomenon.[2] Local police and government officials are known to dismiss instances of women going missing, and have been found to be connected to some cases of violence against women.[2] There have been many small feminist movements that have attempted to bring attention to the level of violence Mexican women face.[9] These movements primarily focus their efforts on demonstrations, sharing their own experiences, and creating works of art to express their frustrations.[2]

Rather than post just the part about backlash theory, I copied the whole paragraph because it needs to be seen.

The wiki article