The problem of unemployment can't be fixed until we are willing to look at the REAL job market

[Nikia]

5. Usually if there are unfilled jobs that don't require specific experience or education

It is usually one or all these factors: it has a reputation as an awful place to work, they are paying very poorly, and/or they are too picky. Every once in a while a company goes through a major expansion and hires a bunch of people. I really wondered about one place that had 500+ applicants despite paying $9/hour and only found 50 of the 100 they needed of them hireable despite the fact that it was all on the job training. It must have been O, A, and G that caused there to be over 450 applicants that they wouldn't consider hiring. In this case, it cuts both ways. If a company can't find people to hire, they need to pay more or accept applicants who might not be perfectly ideal.
If Right Wingers are referring to people not trying to get hired for jobs that they are overqualified for, it helps other people who are applying for those jobs get them since there is less competition.
When unemployment is under 4% and there are almost no jobs paying under $10/hour or its inflationary equivalent, we can talk about people sitting out of employment unless they get a perfect job.