Ignoring the inexplicable diversion into the Constitution’s applicability to states.
You keep arguing against a straw man (no ownership) rather than the actual point (no absolute right to free carry/use). You can have an individual right to own weapons for the purpose of being a part of a militia without having an inherent right to use those weapons for other purposes.
As to the “bear arms” it’s still in the context of a militia. You can’t be arrested for being in a militia. You and your buddies can march around, showing that you’re ready to rebel against an oppressive government, but that doesn’t mean YOU can individually walk down Main Street firing into the air. There’s a prosocial and political benefit from the citizenship being able to rebel, there isn’t one for having random people be constantly armed for resolving personal disputes.