Frankly, the whole Birther thing reminds of how, back in the day, debates about whether a prince was actually the king's son served as proxies for debates about whether the prince would make a good king.
You are being unreasonably generous to Birthers. If they wanted to discuss Obama's qualifications and abilities then they would be discussing them explicitly. A crown prince has the lawful right to take the throne when the reigning monarch died - one of the few ways to get rid of a bad prince was to have him declared illegitimate. If Obama is a bad president then he can be voted out, no need to invent spurious reasons for his disqualification. Birthers are manufacturing doubt about Obama's birthplace and then demanding balanced coverage of both sides of the story. That's also what you're doing in the last paragraph of your post: "I don't know the truth, but I find it interesting that..." You have all the evidence you need to come to an informed opinion. Balanced coverage would be reporting the fact that he was born in Hawaii and has the birth certificate to prove it.
Don't let your minds be killed, but I was wondering if there were any existential risk angles to the coming American election (if there isn't, then I'll simply retreat to raw, enjoyable and empty tribalism).
I can see three (quite tenuous) angles:
But these all seem weak factors. So, less wronger, let me know: are the things I should care about in the election, or can I just lie back and enjoy it as a piece of interesting theatre?