I also neglected to mention that i don’t know why the words of 2 achronim, even if true, would establish enough precedent to overlook the baalei machshava throughout the doros who completely ignore this possibility. Those include the maharal, ramchal, rambans maamar al hegeulah, the kisvei ari, rav yonasan eybeshutz, chasam sofer, gr”a, nefesh hachaim… And ironically, sifrei chasidus, including the baal hatanya and chabad rebbes.
Imagine combing through hundreds and thousands of seforim just to find a glimmer, however faint, of a possibility that a deceased rebbe – and not just any, , but specifically the last lubavitcher rebbe – can be moshiach, ignoring the fact that seforim that deal with geulah never make mention of it…
But that’s one issue. Another is that no one actually has advocated it, not the sdei chemed, and I’m 99% sure the abarbanel too.
And the other issue is that there’s not a shred of evidence that even when alive the lubavitcher rebbe had any shot of being moshiach.