I am tending to agree with your analysis, but I disagree with your characterizing people who work to be informed on this issue the way you have. The reason this issue was never settled is because the media never pursued it. Indeed, they did everything possible to cover it up and make it go away. Despite that, the drum beat continued until recently.
Had the Media been willing to pursue this, or had they been forced to pursue this, this could have done serious damage to him long ago.
Too much of what Americans are allowed to discuss is controlled by Liberal people who decide not to discuss things they don't like.
End of the day, birthers don't have any hard evidence. There's not enough legal leverage to entice any neutral court or opposition politician to take up the cause. There's no appetite in the American people at large to chase rainbows and shadows. It was interesting for a while, but it's gone as far as it's going to go. I share your sentiment about the liberal media to a point, but at the end of the day, they were able to spike it because there's no fire there. Just smoke.
That being the case, absent any major revelation of tangible evidence, it's time to let it go. From here on out, this cause serves Obama and Obama alone.