given that only 15% of pop are citizens, then deduct the numbers of citizens who are unable to work because of their age or other reasons, then no Qatari should be unemployed - there are plenty of jobs out there.
The problem is two fold: firstly Qatar runs a low wage economy thus many would find these jobs unacceptable - but that's the 'real' world.
The second problem is educational inflation; in the globalized economy that Qatar finds itself in, as it competes with business around the world or hosts multi-national companies, the standards of education required continue to climb. Most jobs worth having now require a degree and basic clerical jobs need at least education to 18. If you have left school at 16 you will be working in McDonalds or spending years trying to learn a skilled trade.
So the solution?
The current 'lost' generation will have to be supported financially by the government but with a commitment that such benefits will stop for their children eg come 2030 say, No Job = No government handouts. Obviously the unemployed will be given enough benefits to eat and put a roof over their heads but no more. The incentive will be to earn a living, parents will put a greater store on educating their offspring, it will cure the malaise of 'entitlement and less expatriates will be needed in the country. However this all depends on the government providing good quality education, something I believe the SEC is working on but it can't do it overnight; it will take a generation.
Artificially stimulating the job market by placing unqualified and unmotivated citizens into 'made up' jobs in the public sector does nothing to solve the long term situation. Private companies can not afford to carry 'dead wood' either. The history of Qatarization, Emiratiztion or Saudization has proved that it does not work - stop flogging a dead horse and deal with the real issue which is education.
Hey, but that's only my opinion. :)