In a blistering 54-minute Instagram video, she pressed viewers to check in on the men in their lives and denounced Congress as a "corrupt institution" for failing to do more on gun violence.
She posted the video a day after an 18-year-old gunman shot dead 19 children and two teachers at an elementary school in Texas.
"It's really important that we understand the roots of this," she announced.
"The vast majority of mass shooters are young men that have a very troubling history with women almost every single time."
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"There is violence against women that immediately predates the you know this violence. This shooter in Texas, shot his own grandmother."
"We've seen a pattern here with this."
The motive that led Salvador Ramos to open fire in a school is further unknown.
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Though Ocasio-Cortez denounced a type of toxic masculinity that she announced glorified guns and violence.
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"Check on the men in your life," she stated, "Seriously because there's, it just feels like there's very few role models and examples of people talking about this in healthy ways."
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"And it's a big problem because there are a lot of crises."
"And especially as we try to evolve out of a world that is predatory on women, gay, non-binary and trans-people because traditional regressive, you know patriarchal values, ... and uplift men's identity in relation to other things in relation to like, how women treat them, how much stuff they have."
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Young men, she announced, were being radicalized in new ways.
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"But there is such a thing as healthy masculinity that is not rooted in the subjugation of other people," she stated.
President Joe Biden immediately signaled a fresh push for gun control in the aftermath of the killings.
Yet Republicans, who can block legislation in the Senate, have already made clear their opposition and several Democratic leaders have all admitted that the attempt will prove fruitless.
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Ocasio-Cortez expressed her fury at the inaction.
"It's not just gun violence,:" she stated.
"There's so many different areas and issues where all of us agree - if not all, an overwhelming amount of us agree. And Congress still can't get their s*** together."
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"It's really hard, and it's super frustrating. And it's frustrating for you."
"It's frustrating for me being a part of this. And I don't want to be one of those ding dongs that just tells you to vote harder because the solution is a lot bigger than that and it's going to take a lot more of us and from us to fix this."
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