The onus is on them to explain the Gemara, not the other way around
What’s this supposed to mean? I’ll just repeat what I wrote before: “All the poskim I mentioned knew that Gemara.”
Are you trying to tell us that your mockery is indeed not directed at Chabad, but all chassidim at large? The Minchas Elazar, Divrei Chaim, etc.? So why don’t you start a thread like that.
Additionally I don’t know the circumstances of those Rebbes who sat in the rain
Ah, so you don’t know. You mock Chabad for a widespread chassidish minhag of talmidei habaal shem tov and onward, explained by giants such as the Minchas Elazar and others.
And when confronted, you admit that you know nothing about this minhag. All you know is: mock first, question after.