RB, the problem with your approach is that there hasn't been a constitutional amendment getting rid of the 2nd Am. That's how, in this country, we get rid of outdated or unworkable provisions like the restriction of the franchise to men or the prohibition on an income tax or the method of electing a president. Saying we should ignore a law because we don't like it or think it's outdated is the opposite of the rule of law.
As far as the militia goes, the US Code (if it's important, I'll dig out the provisions) defines both unorganized and organized militias. Each is treated separately. You and I (lord help us both) are both members of the unorganized militia, like it or not (except that I might not be considered able-bodied or sound of mind
). Unless you really think it's impossible for the federal government ever to become oppressive - and surely you can't believe that, not after the hue and cry that has been raised about the current President's policies - the second amendment is the citizenry's backup.
And btw, I happen to support a fair degree of gun control (specifically, licensing and registration with periodic proficiency and safety tests as part of the licensing and registration process). That is a separate question from whether the 2nd amendment protects an individual right or is "outdated."