...I don't necesarily mean guns, I mean any weapon, so in ancient rome I'd be pro swoard rights for example

I understand your intent, and I also understand the feeling, and I largely agree with it. However, there must be limits. Should people be allowed RPGs, fighter jets, bombers, tanks, nukes, etc.? If not, where are we drawing the line, and for what reasons? Can those reasons apply further to other weapons? There are reasonable restrictions we must have. The issue is that every person is going to have a different idea of where the lines should be drawn. Some will draw it at a sword, some a handgun, some a machine gun, some a nuke.

I don't know what the answer is, but it obviously isn't "all weapons" and probably shouldn't be "no weapons."