Should the Punishment Fit the Crime?

Let me make this clear from the outset - I do not support a Saudi Arabian/Sha'ariya system of justice but nevertheless, I am always interested in a) testing the limits of logic and b) being a bit impish, so, now you can read on:-

Florida has come up with an interesting idea -

Rapist agrees to castration punishment for sexual battery

PANAMA CITY, Fla. - A confessed rapist has agreed to be castrated in a plea deal that could save him from a life prison sentence.

Bobby James Allen pleaded guilty Monday to three counts of armed sexual battery and various other charges involving attacks that happened in 1998 and 1999. Allen filed a motion requesting castration in exchange for a reduced sentence.

Does that mean that arms can be dismembered for throwing stones and firebombs?

That fingers can be amputated for pulling triggers?

This could be a unique way to stop terror.