If a potential employer seems to think creative writing majors are unsuited for real work, point out that no business survives in our time without talented communicators on staff, that employers and recruiters are constantly complaining about the poor communication skills of business school graduates, and that creative writers are among the best communicators anywhere. If so, go for the right reasons. An M.F.A. in writing won't make you a whole lot more employable. The best reasons for going are to get time and guidance for your writing, not to hide out from the world. And if you don't get into a program, don't take it too personally.
Admission is highly competitive.
It doesn't mean you're not a good writer, or that you should give up writing. It probably means there just weren't enough open spaces. If you find yourself, at the end of all your efforts, stuck in a boring, menial job, don't despair. The boring job you suffer through today may become the subject of a story, poem, or novel tomorrow. Read George Orwell's wonderful Down and Out in Paris and London.