College degree necessary?

Has anyone thought of this? We are basically paying thousands of dollars in college to go through 4 years of hell on earth to just get a degree which does not guarantee us a job. Before every single test, students would trap themselves inside their dorm room and study the subjects by themselves to pass the test by themselves. Professors are there just to make tests... I'm an 3rd year engineering student and would like to know if there is a test that I can take to prove that I am qualified to be an engineer in the US. Do you actually need an engineering degree to be an engineer in the US? Would passing the Fundamental Engineering and Professional Engineering examinations be good enough to demonstrate that I have sufficient knowledge in engineering?