The question asked to her is essentially, "why should Latinos concern themselves with issues that affect black people?" And her answer is that it's because
there are black Latinos and those same issues that affect black Americans because of their race can just as easily affect black people from Latin American countries, or from any country for that matter.
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This guy^ is Afro-Latino.
If he weren't a successful baseball player, or even in spite of it, he could easily be targeted by some racist simply for being black, regardless of the fact he's Latino. It's his black skin that's the issue to some. BLM, whatever feelings you may have about the organization or how valid their arguments are, is considered primarily a black issue. Her point is that there are black Latinos and the issues that affect black Americans can just as easily affect the Afro-Latino community and that there's reason for them to get involved in it.
I don't get what is so hard to follow here or why this is controversial in any way. That's probably also why the media isn't covering this non-issue.