1: enough with all these threads about Lubavitch. It is a holy Chassidus and it’s Rebbe איש אלוקים קדוש הוא.
2: @mdd1 get help. Either you are a sonei chinam or just uneducated. I hope the latter. Open an Igros Moshe and you will see the titles Reb Moshe gives the Rebbe.
3: It is an ISSUR DEORAYSA to cut your beard. The Gedolim paskened. I don’t know what Reb Moshe wrote. Even if he wrote that, במחילת כבוד קדושתו, יחיד ורבים הלכה כרבים.
There is a well known story that a Bachur came to Rav Shteinman and asked if he could shave his beard. When Rav Shteinman said no, the Bachur said that everyone else in his yeshiva shaves. Rav Shteinman asked him: would you eat Chazir if everyone in your yeshiva did?
The Chafetz Chaim wrote a whole Sefer against cutting your beard.
The Baba Sali would refuse to hear Birkas Kohanim from a Kohen who didn’t have a beard.
Reb Chaim wrote a Perez in Orchos Yoshor about it.
I saw letters from Rav Shach, the Chazon Ish and Rav Aharon Kotler that say that you cannot shave.
A Rabbi by the name of Reb Moshe Viner wrote a two volume set with all the mekoros and letters of the Gedolim about cutting your beard. It is called Hadras Ponim – Zoken.