n0mesorah,
“If you want to discuss the actual nuance of eruvin, I’ll try my best. But you can’t just quote one liners. We would have to establish what was the general precedent all over Europe and how the postwar generation transplanted it to America. And then we could examine Rav Moshe’s take. I concede that there can be a kosher eruv in Brooklyn. But anybody who cares about authenticity knows that it would have to be under the auspices of a qualified Rav who can attest to it’s proper construction and that it is frequently checked.”
Rav Moshe maintains that eruvin were established in previous generations in cities which contained populations greater than shishim ribo. Do I need to cite more proof? There is no such thing as “transplanting halachah to America.” Halachah is the same all over and forever, unless you are a Conservative Jew. The issue of “proper construction and that it is frequently checked,” is irrelevant to the debate at hand, and is simply a smokescreen.
“To my knowledge, Rav Tuvya Goldstien was one such example. Though he explicitly said that it does not conform with Rav Moshe’s opinion. Are you claiming that it does?”
Rav Tuvia allowed carrying and did not accept Rav Moshe’s chidushim at all. Those who argue otherwise are lying. There is no talmid who would disagree.