> In any case I like your Arch Fallacy! I think I will use it.
I'll use it too, it's great and I don't recall any term for that particular error in thinking. I've already started spreading it (the name, not the error) among friends, hoping it will catch on.
Funny thing is on first reading, I didn't notice that at all and read it the way you meant. I only saw the typo on a second reading. Interesting autocorrect the brain does.
In any case I like your Arch Fallacy! I think I will use it.