I personally feel that a non-partisan can be as politically engaged as any one who chooses to belong to a political party. I vote just anyone else. I look at party platforms. I have yet to find one that suits me well enough to become a member, but I may at times like one more than the other. It will almost always be a third-party because, in my experience, neither of the two major national parties is at all interested in representing the people of the United States. They’re about getting reelected.
The sad truth is that even if we kicked out the two major parties in favor of some now-third parties who would eventually become the established parties and then, they would no doubt stop representing the people and start representing staying in power by any means necessary.
So, while my pragmatic nature recognizes that we’ll probably replace the Democratic Party or the Republican Party with a third-party that for a while will represent the people, my ideal political climate would have no parties whatsoever.