I’m not sure why I’m going back to this. Maybe it is the connection to Purim that made me think about it last week.
CS: The Rebbe was quoting, in the very early years, at a small farbrengen, what a mashpia had said regarding the Chazon Ish, that even someone such as he, would be jealous in gan Eden of a little boy learning Chassidus (I hope I’m paraphrasing correctly.) the context was the greatness of Chassidus, not denigrating misnagdim.
. . .
This reminds me of another Chassidishe teaching that the loftiest Malach would give up everything for a single amen Yehei Shmei Rabba by a yid.
(I don’t know whether that ‘teaching’ is factual, but I’ll run with it anyway.) The two are not comparable. A Malach has no bechira, so he is therefore perfect despite being willing to ‘give up everything…’. The Chazon Ish was human with a bechirah, and therefore saying that he is jealous in Gan Eden is indeed denigrating.
Now, if the Rebbe treated others outside lubavitch, disdainfully in general…
True he didn’t treat others outside Lubavich disdainfully, but he did treat other shitos disdainfully. I can’t be bothered now bringing proofs, but they are numerous.