Yes they should! It’s fast and certain.
Hey, look what I found, a liberal article on bringing the guillotine to Louisiana:
And a guillotine is actually quite merciful, just like double-tapping the head and the heart simultaneously. A brief instant of agony, and it’s over.
Plus, with the guillotine, the head, deposited neatly in a basket or bucket, can be shown on the tee vee for Low-IQ individuals considering doing something heinous.