There is forthcoming TV show which is based upon the ultimate rad fem fantasy of all men dying leaving women. The clip on YouTube does not say what happens to the trans, those with male genitals who think that they are women, but no matter. There will be more pressing problems in the real world if this happened.
The first job is to get rid of almost half of the population. Since the men collapse vomiting blood, it is like to be some new virus, that could mutate easily, next targeting women. Disposing of the corpses, even using earth moving equipment, will not be easy. But worse, since men work the basis infrastructure of society, and women the talky-talky stuff, the power will go down, quickly, including the fuel pumps, water supply and sewage. Are there enough trained women to keep the system up? No way! What about the nuclear reactors, which will go into meltdown after 48 hours when emergency cooling systems fail? Game over for the planet.