UNQUALIFIED APPLICANTS WILL NOT BE CONSIDERED is a neutral, uncontroversial statement that most people would consider fair and reasonable. You can also request the applicant to fill a company specific form so you can search for "qualifiedness" using grep.

UNEMPLOYED NOR CONSIDERED is rude, discriminatory, and barely legal, if at all. Not to mention is bad PR for the company in question.

HR fat cats who push this things on should be fired so they can enjoy their own stupidity first hand.