Yep, open carry is legal because is is not forbidden by statute. Laws are generally passed to restrict something, not authorize an act.
Handguns are tools. No more evil than a hammer or a shovel. Any tool can be used to facilitate a criminal act. It is the person that either breaks no laws in the use thereof or commits a crime. We already have adequate laws from assault & battery on up to various levels of homicide - no qualification is needed as to what tool was used.
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