Back to the issue of shechita:
(I don’t know if your still around yitayningwut, but it’s not like I have a problem with talking to myself.)
The Gemara in Chullin (5a) tries to bring a proof to Rav Anan that the shechita of a mumar l’avodah zarah is valid. The proof is that Eliyahu ate meat that the ravens brought him from Achav’s kitchens, which were obviously slaughtered by a mumar l’avodah zarah. The Gemara rejects the proof because maybe really the shechitah is invalid but in this case Eliyahu had a special dispensation from H’. Tosafos asks that in the step where the Gemara was bringing the proof, they were assuming that Eliyahu did not have a special dispensation. If that is the case then even if the shechita was valid, it should be assur for Eliyahu to eat it because it is ??? ?????? ?? ????. Tosafos answers: ??? ???? ??? ??? ???? ???? ???? ?”? ????? ???? ??? ???? ?????? ?? ????? ??? ?? ?”? ??? ????? ????? ?????? ????? ????? ?????
Now it seems as if yitayningwut’s pshat is that when the Rambam says ??? ??? ???? ?????? ??? ?? ???? ??? ??????? ?? ???????? ???? ????? ????? ????? ????? ??? ??????? ?????? ????? ??? ??? ????”? ??????? ???? it means that the shechita is invalid because they are ???? on avodah zarah. If that is true then the Gemara should not have a proof that the shechita of a mumar l’avodah zarah is valid – maybe it’s not valid but in this case H’ told Eliyahu that the shechita was not done l’shem avodah zarah, the same way the Gemara assumes that H’ told him ???? ??? ???? ?????? ?? ?????. Unless there is another answer to Tosafos’s question that the Rambam could use.
In fact the Maharatz Chayes in discussing this Tosafos concludes that there is a chiluk between the issur of ??? ?????? ?? ???? which is only assur because of a safek in the metzius ???? ????? ??? ?????, and the issur of shechita of a mumar l’avodah zarah which is intrinsically assur like the shechita of a non-Jew. If so the Gemara has a good proof. But if the issur of shechita of a mumar l’avodah zarah is also just a safek in the metzius that he might have slaughtered it l’shem avodah zarah, then the Gemara would have no proof.