This seems less optimal than simply not denying people their rights in the first place. Are you opposed to that idea for some reason?

Not at all. However we live in a world where law enforcement for a variety of factors continue to attempt to suppress our rights to assemble.

It is extremely sad and scary that any intelligent person would actually suggest using violence and guns against the US government to defend rights citizens supposedly already have.

You're talking about starting a civil war that will likely result in the brutal and horrible deaths of tens of millions of civilians, the collapse of the US economy and likely that would drag some others down too. For a country that is supposedly one of the greatest on the planet, things don't seem to be going so well.