Most people think rape should be legal

->They are not that different, but there could be a law which makes it legal for anyone to kill rapists.

Then you've legalized murder as it means I could kill you, claim you raped me, and dead men tell no tales.

->I would have a spectrum of charges to convict for to match the spectrum of seriousness of possible rape crimes.

Make your list of charges based on the different types of rape.