This idea that his lack of eligibility and the crimes committed to cover up this fact is a losing issue is proven wrong by what Trump has done and the enthusiasm his attack has generated. It's that simple.
Lack of eligibility could be a winning issue IF there is hard proof that he isn't eligible.
If there ISN'T hard proof that he isn't eligible, then it's a losing issue.
It's about as simple as that.
The thing to do then, the appropriate way forward, in my opinion at least, is to determine whether there is or is not hard proof that he is ineligible to be President.
At the end of the day, we don't want to be the ones discredited. In my opinion.
It really goes much deeper than that, though, for me. Simply put, I believe in integrity. First and foremost for its own sake. But I also believe integrity can be a winning strategy. Is it always? Absolutely not.
I think societies go through cycles. First, they fall for the smooth-talking charlatan trumpeted by whoever is talking the loudest. Then, once they've been burned (and make no mistake, we're in process of getting burned) they come to their senses and turn to the person with integrity. Reagan had integrity. Bush 2 was far from perfect, but at least he had integrity as well.
But if you give up your integrity, then you become indistinguishable from the charlatans. And unless you're really good at it (which I'm not), there's always going to be a better charlatan than you are.