While I concur entirely with the sentiments expressed by the OP regarding the terrible plight of these imprisoned young men, I cannot agree with his condemnation of the Japanese. God has commanded all the nations of the world to create justice systems. To mankind’s credit, many nations have followed those instructions and have created civil and criminal justice systems, as well as laws that govern their citizens’ conduct. Some nations, like the U.S. and other western countries have systems heavily weighted to favor defendants, while others, such as Japan, favor the prosecution. The latter prefer law and order at the expense of harsher sentences and the conviction of more innocents, while the former elevate individual protections of social order.
Unfortunately, these young men made a grievous error, and ran afoul of the Japanese justice system. I hope and pray that they fair as well as possible during their ordeal, but we should not use this incident as a platform for denigrating another countries justice system, especially one that is not arbitrary, unequally applied, or inherently unjust.