Allowing a permissible form of makeup is not equivalent to eating what someone else might consider as non-kosher.
I would rephrase the first part: “Allowing a highly questionable form of make-up…”, in which case you might end the sentence differently.
I’m curious; how long does the stuff last on the skin? R’ Moshe’s heter (which other major poskim disagreed with) was based on the fact that it doesn’t stick to the skin, so I don’t understand why anyone would even bother using it.