Sechel, lechatchila the halacha is to wash. It is not a strict chiyuv, which is why if one forgot retzeo he does not bentch again. But there was never a minhag to specifically not wash and do the Mitzvah in a bedieved way.
Sukkah….no. being metztayer that you’re not mitztayer that you’re not mitztayer ad infinitum is not mentioned anywhere in any shape or form.
Eating before davening was never meant to be a thing that everyone does; it’s for individuals who are sick or weak. But if someone says that they need it to be able to daven…. it’s not the end of the world, and if this were the only thing neo chabad did i wouldn’t care. But even the shu”a harav does not allow the large amounts of food eaten without concern for davening that some people do. I myself have eaten a bite of cake a couple of times when my stomach hurt or i was feeling extremely exhausted.
The original yiddish in the sicha, not translated(in likutei sichos 1st edition, before the Lubavitcher rebbe ordered the line removed due to accusations of kefirah) – the words are “a rebbe is der atzmus elokus vohr ehr hut areingeshtelt in a guf”
This means, one can daven by the kever of a rebbe, because a rebbe is the essencd of god which he has placed inside a body”
It doesn’t mean the nefesh elokis, if that’s what he meant he would have said so, but even then, you can’t daven to the nefesh elokis of a tzadik, you can only daven to Hashem – so are you davening to Hashem or the tzadik? The Lubavitcher rebbe js saying you can daven because you’re davening to Hashem, because god is there, i.e., Rebbe is god.
This is undeniable kefirah.