Today I got a thoughtful reply from My Rabbi. Sorry that it has taken me a little time to think this through. I agree with you that this really is most ugly, and enraging. I mean, the Jews for Jesus who make this for themselves ... what can you do? This is the least of the things we would argue with them about. But to give this to practicing Jews is surely meant to deceive and to weasel their ways into the normative Jewish community. Halakhically, we tend mostly to focus on the tzitzit themselves, and less the garment to which they are attached. So it is the tzitzit strings -- not the garment that bears them -- that must be from wool spun specifically for the purpose of tzitzit, and tied by someone themselves commanded to follow this mitzvah (male or female, even according to the Shulhan Arukh). Arguably, if you removed all the decorative pinot and the atara, and removed the tzitzit that are there now, and threw all those things away or burned them, I think you could ...
A blog, mostly about my work making Jewish ritual objects, but with detours into garment making, living in New York City, cooking, and other aspects of domestic life. A note about comments: I love comments from readers, from spammers, not so much. I approve comments before posting them so comments are not cluttered with junk. It may take a few hours before your posts appear. Be patient. If you are a real person with a real comment it will be posted.