“If the issue is purely hashkafa, and you don’t know who the Rebbe was, wouldn’t you trust R Moshe Feinstein who was the posek hador for halacha”
The fact that HaRav Moshe Z”L (and other Gedolim) held a high opinion of the Lubavitcher Rebbe Z”L does not = an endorsement of his specific position, especially the ones mentioned in this thread. This is true even when the position is built on the words of Chazal. What you need is examples where HaRav Moshe (or other Gedolim) are on record supporting the specific position under discussion.
Merely citing the Lubavitcher Rebbe Z”L as a source in these cases is not enough. Why Not? The problem is NOT that he is not a legitimate Torah source. No, the problem is that when a legitimate Torah source takes a novel position and:
1) all Gedolim (for who we have evidence that they are are familiar with the position) are opposed
2) no Gedolim (for who we have evidence that they are familiar with the position) are in favor
such a position is rejected.
I have raised this point twice before in this thread and you have ignored it. Why? This is not a controversial point. In fact it is blatantly evident both from halachic sources as well as simple logic.
Your response would be greatly appreciated.