All jokes aside, I want to put on my intellectual hat for a second and make a very critical point. Nicki is highlighting the hypocrisy of the public's reaction, given Cardi's past comments on other people's children and her racial discrimination on black women as a Latina individual.
Nicki's comments about Cardi's children seem to be a deliberate attempt to expose the double standard among many other things, not limited to Cardi speaking on Nicki's child for years with no public outrage or scrutiny.
Let's be honest here, Cardi has faced minimal to no backlash for her past racist remarks, including using derogatory language towards Black women and children, despite giving birth to black daughters. Not realizing that the same privilege she has had as a Latina women, and benifit from, her daughters will not, and have to face the same racial disparities as black girls/women one day, that she inflics on other black women and children.. By mirroring this behavior, Nicki is forcing the public to confront their own hypocrisy, question their morals, and answer why some comments are deemed more egregious than others? I call it a morality check.