Do political parties do more good or bad? It seems to me that following a political philosophy is a lot like following a religion. They both require you to put blind faith into a set of beliefs regardless of the circumstances. Well, that isn't quite true, since religion usually asks you to use reason, whereas political philosophy often requires that you overlook the faults in your beliefs.
My main concern is that political parties seem to foster an "us vs. them" mentality, where each side decides that the other is responsible for the problems of the country, and both sides refuse to offer compromising solutions toward those problems. In addition to that, politicians seem to just be masters of rhetoric and scapegoating who work for big business and special interests groups. They don't really seem interested in the genuine welfare of the country or the liberties and freedoms of its citizens.
I would like to think that political parties at least maintain a balance of power in this country. But it is clear to me, with the interchanging of the members between that parties, that there is no loyalty.