I do not know. I just say that if one demeans their opponents in such way, then it makes those statements less trustworthy (it increases estimation of being a s

I do not know. I just say that if one demeans their opponents in such way, then it makes those statements less trustworthy (it increases estimation of being a strawman). That is obviously a heuristic - in principle one can make demeaning but fair argument, and also tone-correct but strawmanny argument.