You may want to follow the thread where we continue to discuss it in good faith. I think they’re sincerely inquisitive, and sincere (and impressively candid!) in expressing their understanding gap.

I think the various “assume best intent” rules and adages would benefit greatly from a huge “assume limited familiarity when dismissiveness seems out of place” addendum. At least for technical topics where the stakes are “whoops we actually just disagree on the merits”.