I'm not in favor of forcing citizens to vote. I don't think that would change the two-party system because the two main parties have divided up most of the issues and drawn lines in the sand over them. We've gotten used to choosing a side and accepting the platform so that attempts to build a third party won't gain much traction and they're more likely to face pressure to be absorbed into one of the main two. We like having easy choices. The two-party system fits right into that.
"Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts don't go away when scientists debate rival theories to explain them. Einstein's theory of gravitation replaced Newton's in this century, but apples didn't suspend themselves in midair, pending the outcome. And humans evolved from ape- like ancestors whether they did so by Darwin's proposed mechanism or by some other yet to be discovered."
-Stephen Jay Gould
-Stephen Jay Gould