[RS]

"I look at ours, note what has happened to it over the past 216 years, and can easily understand why they might value precision over brevity."

I disagree, the more complicated you make it the easier it is to reinterpret.

How much better it would have been if they had left out the - "A well-regulated Militia being necessary to the security of a free State,'

which has been widely misinterpreted and simply stated -

"The right of the people to keep and bear Arms shall not be infringed."

[newgeezer]

It seems like the 'general welfare' clause would have benefitted from some clarification. As it is, it means anything anyone wants it to mean.

Some of what you call "complexity" is good. There's often a valid reason for legalese in legal documents (other than to give lawyers a reason to exist).