I hate to argue against you because I agree that nobody needs a hundred round clip or full auto for an intruder, but the forefathers' intended right wasn't "people should have muskets". It was much closer to "the people should be armed in case of tyrrany by their government". The intention was for people to defend their other rights by force, making it more difficult for the government (or an invading force) to take over (this was immediately post-revolution mind you and much of the bill of rights was in direct response to british soldiers' activities). Of course they also thought we'd be reforming the government and drafting new constitutions as the culture changed, but of course that never happened.
I mean I get you are playing Devil's advocate but its clear we have also moved far those ideals. You are right the founding fathers didn't just say "people should have muskets" but we also have to think in the context of the times, private companies were also able to be armed with naval cannons but in the modern day I don't think Pepsi, Coke, Johnson and Johnson, or Nestle have an battalion of M1 Abrams and F22 raptors and the such. Like we are told we have the right to bear arms and in those days would be able to purchase the same arms that the military uses but I don't think I would want a world where every idiot can somehow afford and operate nukes, apache helicopters, etc. Hell while full automatic weapons aren't "technically" illegal in the US they are heavily regulated and expensive to possess and we the common people are boxed out owning such devices. So its clear we are "compromising" on the vision already quite a bit. Hell I would hope even some of the most die hard conservatives would think a private citizen owning the right such devices would be a bit much as well.
The founding father's used capitalization to put emphasis on certain terms. It seems to me that they wanted the well regulated Militia, made up of the people, to keep and bear Arms to protect the State and by extension themselves from a tyrannical federal government. If they intended the people to bear arms, why did they add the terms Militia, State, and Arms with emphasis but the people without it?
The only other place in the Constitution that speaks about what constitutes a militia is the fifth amendment, and it specifically only protects a Militia when it is in service to the government, which again is capitalized because they wanted emphasis that it was a proper militia and not a make shift one.
I agree with you, but I wouldn't read that much into their writing. The English language was even more lawless in their day.
In fact, the German-style capitalization of nouns may have just been a stylistic choice by the calligrapher:
Modern printings of the Constitution that follow the engrossed copy of the original can be identified by the many stylistic features in which Jacob Shallus's calligraphy departs from the style of the printers of 1787. The most conspicuous difference is Shallus's capitalization of almost all the nouns, in contrast to the very limited presence of capital letters in the work of the printers. The capital letters now help to give quotations from the Constitution, when taken from modern prints that follow the engrossed copy, an air of authenticity.