The two things you get out of school are a piece of paper that says you went to school for four years and a set of skills.
Unless you’re working in one of the professions where credentials and licensing matter (basically: accounting, law, medicine, engineering), your major matters significantly less than you think. The skills you pick up along the way, however, are critical.
Employers simply will not care whether you majored in English and double minored in communications and marketing, or whether you worked hard enough to get three different majors. They will care that you completed college (at least for a first job), and they will care about what skills you have.
They’ll also care about who you know. Networking and contacts are critical, and you make some of those by joining the yoga club or going to beer bashes or planning a camping trip with the outing club. You don’t get them by ticking the required courses for a major off a checklist.
Also, if you’re doing this because you think it will get you job security, you’re doing it wrong. Real job security comes from doing what you love and doing your job well, not from having jumped through all the right hoops. And you’re far more likely to do excellent work if you love the field you’re in than if you just pick a lucrative major and hope for the best.