The principal argument advanced by those opposed to the death penalty , basically , is that it is cruel and inhuman punishment , that it is the mark of a brutal society , and finally that it is of questionable effectiveness as a deterrent to crime anyway 基本上说,反对死刑人士所提出的主要观点是,死刑之惩罚很残忍,不人道,是社会暴虐的标志,并且,不论怎么说,对犯罪的威慑之有效性也是打问号的。