A real 2nd amendment rally would be a million gun owners participating WHILE carrying. DC couldn’t arrest a million. Or they could have it from Virginia, at the bridges to DC and demand the city be freed for all Americans.
One must realize that Cuba would have no Castro, Venezuala would have no Maduro, China would have no Xi, if their country had our 2nd amendment. The first thing is to take citizens guns, then they take control of your country, and you are helpless to resist.