"Should rapists be sentenced to death?"
No way!! Why? Because we're not exactly sure what "rape" means anymore since it has been redefined. In every single instance, we need to get all the details first to know exactly what type of "rape" occurred.
On one end, we have the legacy definition of rape whereby a stranger, hiding in the bushes, or breaking into a home would use violence to have his way sexually with a woman. We were universally in agreement that this rapist should be given a harsh sentence. And back in the day, that is exactly what happened. Furthermore, this type of rapist often received additional "special treatment" for being this kind of defined rapist once he was in the prison system.
On the other end, we have the modern feminist pushed, consent based disagreements of today that are also called "rape". This can be as little as a he said - she said situation where both parties are irresponsibly using drugs or alcohol and one party (the female) later regrets what happened.
Should we really entertain the idea of the death penalty for the male in this type of crime? Or taking away his freedom for 30 years for the drunken whims of his previously consenting partner?