I remember reading genetic studies on the Negritos which found they were not black African, but instead some sort of native Polynesian related to the other Asians. So that's that. There are some mixed black/Filipino people in the Phillipines though because of black American men who visit, so I can imagine why some people might be confused.
Some of the kids you see on the videos might be half black American. Most however are not. Who knows, who cares.
most of them have asian genes due to many of them being mixed.....sometimes aeta/negrito women are raped by drunk degenerate lowlanders who hired them to work as maids or other menial jobs (similar to how white slaveowners raped females back in the day) so many aeta mommies with mixed kids and no baby daddy
there also seems to be a kind of self hating mentality amongst the negrito community...they prefer the mixed bastard children over a pure negrito child (prefering the good hair over their fuzzy hair). They idolize celebrities who look nothing like them