I didn't write the parent comment, but I'd note that being unemployable is a great reason to start your own business, and if you do it right you'll never need to answer to anybody again. (Besides customers, that is, but customers are usually a lot friendlier than HR departments.)
Another option would be to pick up freelance work. This can often lead to fulltime employment, particularly when a company hires you for a short gig and you impress them.
People generally see work because they need money, and meanwhile a business is one of the biggest money sinks when starting out. I don't really understand why people suggest this as general advice. If you're not already extremely experienced and established in your field, or if you don't have years of savings to live off, I can't imagine starting a business impromptu going well. You need a plan.
Another option would be to pick up freelance work. This can often lead to fulltime employment, particularly when a company hires you for a short gig and you impress them.