Yes.
If, however, you behave in an irresponsible manner threatening or causing harm, others may forcibly disarm you. Our difference is that I would not oppose ownership if they are stored/used properly, while you would prohibit ownership outright despite proper storage/use.
I solve the problem by applying Cooper's Four Rules. If you store/use arms properly, fine - regardless of scale. If you don't, others may disarm you - regardless of scale.
You will be hard-pressed to draw the line between what arms are included in the 2nd Amendment and what are not. Better to find rules (like Cooper's Four Rules, look it up) that suitably apply to all situations, rather than trying to draw arbitrary lines. It's surprising what one can fit into a briefcase...
I am not hard pressed at all. Firearms which can be used by an individual are protected by the second amendment all others are not and can be prohibited.
There are some things which can never be properly stored or maintained by an individual and those include ICBMs with warheads and chem/bio warfare agents.
There was very little danger to by-standers from the arms spoken of in the 2d from an accident. The catastrophic potential for disaster of bio/chem agents makes their prohibition a necessity.