According to a recent Reuters poll, approximately half of Americans think the presidential nominating system is rigged. The use of delegates to override popular vote seems undemocratic to many, and it's hard to trust that it's being handled fairly. The use of superdelegates in the Democratic party seems especially undemocratic, making it feel almost totally pointless to vote in a primary election.
Closed primaries are one of the worst parts of the whole process. Is it really fair to block millions of unaffiliated citizens from voting? Should parties have that much power? I understand that the primary elections are to decide who will be a party's candidate for president, but I don't believe that any citizen of this country should be barred from voting for someone because of lack of party affiliation. Many voters in New York recently claimed that their party affiliation had mysteriously been switched to "unaffiliated" or "independent" without their knowledge or consent, making it impossible for them to vote. It seems ridiculous to me that allegiance to one of the two major parties gets to determine whether or not you are allowed to do one of the most iconically democratic acts of this country which everyone loves to preach about.
It seems that most agree that our election system is quite broken, if not awfully corrupt. This is not a particularly new argument either. I think we should either get rid of closed primaries and the use of delegates, or throw away the whole party system altogether. It isn't fair, it isn't democratic, and it is too easy to give money and power the loudest voice. If nothing is done to change the process, we should at the very least give up on this pretense that we live in any kind of real democracy, the term that so many in this country love to tout.