“My biggest problem with the Sukkah Sicha – is that if one’s Rebbe is pattur from the mitzva, then all of the Chassidim are Patur. So if the Rebbe would be cold, then all chassidim in Hawaii don;t need to sleep?”
You are (perhaps not deliberately) misconstruing the Rebbes svarah, and also misunderstanding the point of the Sicha in general. If you wanted to leave your details with the Mods and they could forward them to me, I’d be happy to speak with you, because I really feel where you are coming from, especially after you mentioned Reb Avremel, who is a Tayere Chossid who I have great respect for.
Regarding HoRav Menashe Klein Z”L, I have the greatest respect for him, and all Lubavitchers I know, especially Rabbonim, hold him in the highest esteem. He was close with the Rebbe as well. I have to admit, that I haven’t seen the specific Tshuva you are referring to, I’d greatly appreciate if you could post the Mare Mokom.