“Another problem going on is with mohelim who specialize in doing brissim for freia people but don’t verify that the child is a Jew. The child assumes he’s Jewish since he had a rabbi do his bris so he goes & marries a Jewish girl.”
Chabad Mohelim make sure to verify. I personally know a prominent Chabad Mohel who declined to do the bris of a the child of a very famous and wealthy couple where the wife was a Giyores of a frum Beis Din, because a concerns about the Kabolas HaMitzvos, or the lack of it. I won’t write the last name, as not to make a Chilul Hashem, because the internet is forever…
” I asked one such Michel what he does about making a brocha on the milah, he said safek brochos lehakel, he doesn’t say the shem Hashem.”
Reminds me of a story with a certain prominent non Lubavitcher Rov, who after the Rebbe Zy”a came out with a shturem regarding “Mihu Yehudi”, and the concern of Goyim in Eretz Yisroel being considered Jews under the Law of Return, where the Rebbe insisted that the word “Kehalacha” be added to the law, this Rov told a certain Lubavitcher Rov who told me this story, that the Lubavitcher Rebbe has done an amazing thing for Klal Yisrael, and illustrated with the following anecdote: “Once, I was being Mesader Kiddushin, and under the Chuppa I discovered that the Chosson was not in fact a Yid, and I was saved from making a Bracha Levatala R”L… This is why the Rebbes campaign is so important…”