Oftentimes, the correct response to an argument is ‘your argument appears after cursory investigation to make sense, however the fact that many smart people have never mentioned this to me suggests that there are good counterarguments, so I remain unconvinced’.
I basically never hear this response, which suggests that there are good counterarguments. Or alternatively that it is unappealing to respond accurately in such cases. The latter seems very plausible, because it suggests one cannot assess any argument at the drop of a hat.
If so, what do people actually say instead? My guess is the first argument they can think of that points in the direction that seems right. This seems unfortunate, as the ensuing discussion of that counterargument that nobody believes can’t possibly resolve the debate, nor is of much interest to anyone.