The formal term is irony, because what they are presenting is actually a "Reductio ad absurdum", but they don't understand why their argument is absurd.
If you want a case and point of this, imagine a comedian proposing this idea dripping with sarcasm and clever little jokes, sort of what John Oliver does. The overall absurdity would be obvious, and everyone would understand the suggestion is a bad idea, with a little bit of honey to go with the vinegar.
The people often presenting this sort of unintentionally ironic argument don't seem to recognize the idiocy or exclusivity of the thing they're suggesting. Lacking understanding of the absurdity of the situation is the definition of their ignorance, because the burden of understanding and proof are on the person presenting the argument, not the audience. (Everyone is ignorant in some way, and nobody is even close to knowing everything. You're being dramatic if you really think that way, even for a second.)
If you want a case and point of this, imagine a comedian proposing this idea dripping with sarcasm and clever little jokes, sort of what John Oliver does. The overall absurdity would be obvious, and everyone would understand the suggestion is a bad idea, with a little bit of honey to go with the vinegar.
The people often presenting this sort of unintentionally ironic argument don't seem to recognize the idiocy or exclusivity of the thing they're suggesting. Lacking understanding of the absurdity of the situation is the definition of their ignorance, because the burden of understanding and proof are on the person presenting the argument, not the audience. (Everyone is ignorant in some way, and nobody is even close to knowing everything. You're being dramatic if you really think that way, even for a second.)