Groupe d’Action pour le Droit (GAD), a non-profit NGO in the Democratic Republic of Congo that advocates for the human rights of children, youth and women affected by sexual violence. They do counselling for survivors of sexual trauma and community education about the issue. The conditions that GAD is working in are horrendous to say the least. The United Nations characterizes the conflict in the DR Congo as “one of the bloodiest the world has known since World War II.” According to Amnesty International,

“Tens of thousands of women and girls have suffered systematic rape and sexual assault since the devastating conflict in the Democratic Republic of the Congo (DRC) began in 1998. Rape, sometimes by groups as large as twenty men, has become a hallmark of the conflict, with armed factions often using it as part of a calculated strategy to destabilize opposition groups, undermine fundamental community values, humiliate the victims and witnesses, and secure control through fear and intimidation. It is not unusual for mothers and daughters to be raped in front of their families and villages, or to be forced to have sex with their sons and brothers. Rapes of girls as young as six and women over 70 have been reported. Young girls are also regularly abducted and held captive for years to be used as sexual slaves by combatants and their leaders.”
[...]
GAD has identified pornography as a factor in these atrocities. [...]

It may also be because they know that most people in America could not really care less, so why waste their breath and time bringing up another issue when they have enough to bullshit about in TV debates anyway?

I suspect this is because they know very well that gender inequality does not pose any thread to “development” and so-called “economic stability”, but are quite aware that “development” and “economic stability” (i.e. the extension of the global capitalist system into every last human community on earth) are firmly based in gender inequality and would crumble without it.