Pretty much nailed it:
Just say no. Don’t be an adjunct. Or rather, be an adjunct only if you have a day job, or you’re retired, or if you have a family to raise and a breadwinning spouse. If you love to teach, teach high school. Or get some other kind of real job. Let the law of supply and demand do its work, because drastically reducing the supply of academic victims is the only way colleges will stop victimizing them.
Charlotte Allen in the Los Angeles Times