Leaving as untouched as I possibly can while still participating in this discussion at all the political labeling question here, I am interested in your thoughts as to the structural similarities and differences between the hypothetical conversation you cite about sexism, and a conversation like:

"Let's make God happy by putting kittens in a blender!"
"Putting kittens in a blender sounds like a bad idea."
"You evil atheist!"

or

"Let's improve our capitalist economy by putting kittens in a blender!"
"Putting kittens in a blender sounds like a bad idea."
"You evil communist!"