For those interested, I find no more than 60 citations (not deduped) since 1980 for vizmin (with S or Z, one word or two) in two major databases of newspaper articles, and almost none in books. It isn’t in the online OED corpus or the Canadian Oxford.
Back dans la journée, though, Frank used it every other month. But no one would ever bother to index such a publication.
In case you don’t know, vizmin is a short form for the accepted Canadian English visible minority, and neither term is pejorative.