“P.s. (On a side note moshiach does not have to be alive – look in the gemora there and the merforshim I quoted)”
And as I have pointed out a number of times on both threads no matter how you learn the Gemoro the lubavicher rebbe does not fit as moshiach.
If you learn like the first pshat in Rashi and you want to say moshiach is someone who has died THEN IT WAS DONIEL and no one else.
If you want to learn like the second pshat in Rashi, then moshiach HAS TO BE SOMEONE ALIVE.
At last count the lubavicher rebbe wasn’t alive (according to a silent majority) and he was not Doniel. So, according to the Gemoro that YOU quote in support, he CANNOT BE MOSHIACH. To “interpret” the Gemoro there differently without any other early source IS apikorsus because it makes a mockery of Rashi and Chazal.
And once again, the Maharsho which you quote does not explain the Gemoro differently.