I have the utmost respect for the ba’al hatanya, Rav Dovber and the tzemach tzedeck. I own most of their maamarim and the ones i don’t own it’s because Kehot hasn’t republished them.
I have the utmost respect for the deceased Lubavitcher Rebbe.
But anybody who believes that the Rebbe is moshiach is bordering on apikorsus and is outside the fold of Yiddishkeit entirely. And that’s why it’s so scandalous that people talk about it.