There are many sources which explicity reject Rav Menashe Klein's view
Beis Yosef(Choshen Mishpat 2:2): The Rashba (3:393) states: It appears to me that if the witnesses are believed by the judges then the judges are permitted to administer physical or monetary punishment according that which they deem appropriate. This is necessary to preserve society. Because if you would insist that everything has to follow the law of the Torah and only punish according to the Torah in cases of beatings and similar cases – the result is that the world would be destroyed. In other words, society would be destroyed if you were always required to have 2 male Jewish witnesses and forewarn the criminal in order to convict a person of a crime. This is what is meant in Bava Metzia (30b): Yerushalyaim was only destroyed because they insisted on following the Torah law. This is certainly true outside of Israel where monetary fines are not administered according to Torah law. As a consequence of the inability of Torah law to punish those who don’t take committing crimes seriously - they would break down the walls that protect society and as a result the world would become lawless and destroyed….