The ways gender seems to stuck people on individual (interaction) relations bypassing the social structures of the gender and patriarchal order seems to concord with the argument of Virginia Ferreira about the useless of the concept of gender.
This slippery concept together with a strict foucaultian perspective on power renders gender as incapable of accounting for the power relations in private sphere between men and women and some analysis slide to wrangles between individuals.
Although affirming a feminist perspective, there is a difficulty to perceive women as a group with less power than men.
On the contrary, Sue Clegg (2006) is particularly clear about the structural relations founded in gender inequalities and the patriarchal order.

References:
Freitas, Lúcia & Pinheiro, Veralúcia (2013) Violência de Gênero, Linguagem e Direito. Análise de Discurso Crítica em Processos na Lei Maria da Penha, Jundiaí-SP: Paco Editorial.
Clegg, Sue (2006) “The problem of agency in
feminism: a critical realist approach”, Gender
and Education, 18:3, 309-324, DOI: 10.1080/09540250600667892.