I'm going to try and be clear about what I am not saying, and then I'm going to restate what I am saying, because I'm not sure I've managed to distinguish the two so far. I apologize for that.
When I bring a complaint against the major parties, that does not mean that literally any party that does not have that particular flaw is good. That is not how a criticism works. I do not become a fan of FATAL by claiming that the d20 system is too granular. Thus, the Free-Soil party is irrelevant.
I am not saying the parties are wrong for settling on issues that divide voters. This is a natural outcome of the voting system we've got, and while I think that system could stand to be changed, it's not what I'm complaining about. Thus, median voter theory is irrelevant.
I am not demanding that parties offer contradictory things, to the best of my knowledge, and at no point has any proof or evidence been offered that I am. Near as I can tell, you're firing off a kneejerk reaction to criticism of both parties aimed at what you think I'm saying. Maybe that's because I've been surprisingly unclear, or maybe it's because most people who dislike both parties do make the argument you're targeting, or maybe it's because you're being very dishonest about this. I honestly don't know, and for what it's worth I apologize for whatever part I've played in that.
I am not demanding that any party represent the wants of the whole of society. You made that up. Neither do I demand that any particular, real party be extremely competent, friendly to my beliefs, or whatever. You made that up. Those claims are irrelevant.
I much prefer the Democrat philosophy over the Republican philosophy, but that's not the point, either. I can still dislike the Democratic party if I see it as the lesser evil. I'm not saying both parties are equally awful, so if at some point you want to accuse me of something like advocating just giving up and letting the system slide into ruin as a necessary consequence of cynicism, that's irrelevant, too.
What I am saying is that both parties prioritize elections over policy. This means that they do what voters want them to do, instead of what's in voters' best interest according to the party's philosophy. Moreover, this means that both parties prioritize the attention of individuals and organizations that help them win elections over ones that do so less; that is, they prefer wealthy donors. Both of these trends mean that parties spend a great deal of time trying to humiliate the other party. As opposed to governing.
That is the criticism, here. That obtaining power has become more important than using it. And I'm getting really tired of your attempts to obfuscate that, whether intentional or not.