We both know that the two of us are not gonna have a fruitful discussion, so I'm not gonna get into one again, but I will tell you this.

Anyone who has a degree in political science can tell you (or: should be able to tell you) that the name is misleading, since politics does not adhere to typical scientific standards; it's not falsifiable and it's not repeatable (especially not in an enclosed environment).

That does not mean that political science (or any other non-beta type of science) is useless, or at least I do not think it is. I think it can certainly teach us useful stuff, but it is very important to realize that it is not science in the "traditional" sense of the word. We cannot prove anything in a scientific manner; the usefulness rests in the discussions more than anywhere else. We can pose ideas and discuss hypothesis, in this way we can even get to some sort of estimation of probability, but we must always realize there just is no real way of knowing anything in any scientific way.

In other words, political science is paradoxically only useful if you first realize that it's actually not science at all.

In this case, I think you are projecting modernism - the believe in progress as based on science - on non-scientific concepts like politics, or freedom. If political science tells us anything, it is that we can not do that. We can not say whether or not the concept of freedom has progressed, at least not in a scientific way as you seem to be suggesting.

See also: http://en.wikipedia.org/wiki/Post-structuralism and/or http://en.wikipedia.org/wiki/Postmodernism