Argüman Needs A Serious Redesign/Rethink
An alternative (open-source), with most of the features mentioned on this page: https://debatemap.live Disclosure: I'm it's primary developer.
Gun control has worked in many European countries, but will most likely not work in the United States.
Not forever. Nothing is forever in government. Just as good governments can erode, bad governments can and have numerous times.
The greatest most just punishment, is for the criminal to feel the highest possible state of empathy for the victim of their crime.
Even if it's most just, it's not practical because you can't force someone to empathize with those harmed.