Yankel, you still haven’t explained why you attack the minhag of not sleeping in Sukkah, but not the minhag of not eating in the Sukkah on Shmini Atzeres and lighting menorah inside the house – both of which are seemingly against halacha.
Your only answer was because it was the Rebbe who explained the minhag (which has been in Chabad for generations) and you have your own interpretation of what the Mitteler Rebbe said (which doesn’t at all fit with his original words, which I doubt you’ve seen).
You don’t mind someone unquestionably following his rov or rebbe regarding Shmini Atzeres and Chanukah, you only have a problem with following the Lubavitcher Rebbe.