Is it considered unusual or cruel?
Most Helpful Guy
Even if it's not against the US constitution, it certainly is very barbaric, unnecessarily cruel and unworthy of a developed, democratic republic. I consider it pretty much the same as countries such as Saudi Arabia stoning women to death if they cheat on their husband.
I also believe castration as a punishment is against the UN Declaration of Human Rights because it could be regarded as an act of torture (not that the US ever cared much about that...).