I don't think you can assume that the position will be filled. The position may be no longer be economically viable at higher wage rates or lower skill levels a

I don't think you can assume that the position will be filled. The position may be no longer be economically viable at higher wage rates or lower skill levels and thus be eliminated. However, there are some additional factors that complicate this picture. If there are fewer unskilled jobs, people will adjust by working to become more skilled. If people have higher paying jobs they will spend more, producing more jobs. If there are many unskilled people looking for work, there is incentive for somebody to find a way to make use of that resource. But really, the only point I sought to make here was that your original comment which didn't look at the non-skilled worker was missing a bit part of the equation, and so its logic didn't work.