A well regulated Militia ...
A lot of obfuscation is attempted by emphasising the first part of the amendment over the second.
However, there has been plenty of legal analysis: the first part is preamble - the second part is the actual declaration. The first part is explaining the motivation, not limiting its application. The language is clear.
For better or worse, this is the essence of the 2nd amendment:
<b>the right of the people to keep and bear Arms, shall not be infringed</b>