I agree that Adam Kokesh (assuming he wins the Libertarian Party's nomination for President, which I think he has a good chance of doing) is going to be shut out of debating the Republican and Democrat candidates for President. No matter who the LP nominates for President, I doubt that the Republican and Democrat candidates will debate them.
I disagree with you that there is no value in Adam Kokesh running for President. I got involved in the Libertarian Party and movement back in the 1990's after being exposed to Harry Browne's campaign for President as a Libertarian Party candidate. I have spoken to Libertarians and small "l" libertarians all over the country, both in person, and online, and one common question that I typically ask fellow libertarians is how they became a libertarian. The number one answer that I get is because of a political campaign, and it is usually a political campaign for a high level office. The number one answer (by far) I have gotten from libertarians whom I have asked this question is because of Ron Paul's campaigns for President. The number two answer I have received from libertarians is because of Harry Browne's campaigns for President in 1996 and 2000.
The fact of the matter is that most of the public does not read books on philosophy, or economics. Most people will pay at least somewhat attention to who is running for President. If Adam Kokesh can reach a lot of people who'd never hear what he has to say otherwise by running for President, and who don't read books on philosophy or economics, and who don't visit alternative news websites, then I say that this is a good thing.
I would agree that it is a complete waste of time for the Libertarian Party to run the kind of candidates that it has run on its last three presidential tickets, like Gary Johnson, Bill Weld, Bob Barr, etc... These people were not even really in the ballpark of what I'd call a libertarian, and running candidates like this is actually counterproductive. However, as long as a candidate runs on at least a fairly strong libertarian platform, I see them running for office as a good thing.