@RebEliezer, re:Rav Weiss letter. This is good indeed. So far, first response here is that the Rav may be under pressure from the evil government, but at least we should follow them in shul.
There are lots of halachik references that maybe some people here can unpack. I see at the end of 4th par to Rambam’s halakhot rotzeach – is this about considering an uncareful person a murderer?
There is also a last line in the teshuva that I understand intellectually but have hard time to follow:
>> and most important – increase brotherhood and friendship, run away from Machloket,
>> and help your brothers, and there is no bigger vessel for Hashem’s bracha than shalom
so, you ask someone nicely to put the mask on; then you move to another side of the shul; then you comment to your neighbor passive-aggressively that he should move away from that guy without the mask; then you point to his zipper as if it is unzipped. This does not work .. how do you increase brotherhood after that?