that is ONE viewpoint. IMHO......it is critical to LEARN from the past and use those learnings ( knowledge) for an improved present and future.
Retaining "old ways" may provide traditional "comfort" when one is not prepared for or want the changes that are inevitable as time moves on . Sticking to "old ways" also means avoiding the many conveniences of the present....including using computers, cell phones , and the many medical tools that are used to enhance patient care.
but that is digressing from the topic at hand.
IMHO......the US has become far too climatized to killing as a solution , killing as a form of justice and if THAT is what you mean by "retaining" the old ways. As it is very "old" to use killing, torture, lynching , targetted assassinations and other barbaric acts as a form of "justice" It denies the civlization that we as a people are supposed to have reached. Of course some will venture that those that have been targetted are not civilized. Fair enough......their conduct is not civilized, it is criminal......but that does not mean that "we" have to lower ourselves to their level .....as that is all that happens. If we are to be an example to the developing parts of the world......it is imperative we follow the laws and ethics we claim to live by. Without laws, ;, and ethical standards .... we are not civilizled and are not "free". A free society needs & has boundaries that are defined by the law , ethical and even "moral" standards.