If marketing was harder than programming, I think we'd have dozens of programmers trying to find marketers on Craigslist and forums... instead of reality which is marketers scraping for programmers to join projects on an equity basis.

That sounds true on the surface but actually we've no idea of the number of programmers who failed but would/could have succeeded had they gone looking for a marketer. That marketers go out and try to 'market themselves' to programmers shouldn't be a surprise.