Did they use their status as citizens to facilitate the immigration of other family members? 'Cos I was under the impression that was the meaning of the term. And it’s kinda pejorative for that reason.
*See also: *shitloads of screaming Fox News headline crawls warning of the coming tidal wave of “anchor babies” that will destroy America and ensure a neverending political dynasty for the Democrat[sic] party (not necessarily in that order).
I also seriously doubt your claim that the non-legal parents of legal “anchor babies” you allegedly work with are voting anywhere other than Univision phone polls.