Potato, regardless if you bring sources that moshiach can come from the dead, the fact is that many Lubavitche rabbis claim that the Rebbe is PHYSICALLY alive. For moshiach to fulfill the prophecies he would have to be alive so if you believe your Rebbe is the moshiach he would have to have techius maysim first. Why don’t non-Chabad rabbunim protest the belief that the rebbe is moshiach?They dont care, and rightfully so, because its not a”z to believe that the Rebbe is moshiach.
The problem is, and I keep repeating this, is the a”z aspect of worshipping your rebbe. I have said that it’s a chillul Hashem that no one is speaking out against the avodah zora that goes on. However, I will be dan l’kaf zchus that like most frum people, gedolim have no clue that Lubavitche believe their rebbe is running the world, that they are are praying to the rebbe’s chair, that they believe they can pray to the lubavitche rebbe like to a god, that they make aliyahs for him like hes alive, that they make believe that he’s giving dollars to the oilim, that they say that the rebbe never made mistakes, etc, etc. The behavior of making believe that the rebbe is giving out dollars and l’chaims is like those who worship actual idols; they make as if their god is actually doing the physical work. The gedolim have no clue, like most frum people, that this is what Lubavitche believe in and actually do.