In the first place, they turn the ideo of ideology on its head. Ideology is supposed to be a sort of theory of all of reality as it relates to human behavior, and when you form a theory, you make it so that if fits everything you observe. And then you further test it by further observations. And if things happen that your theory doesn't explain, you then modify the theory to account for the new data, or, if the observations are too wild, you abandon the earlier theory for a better one.
Scientists once explained combustion and other things with the phlogiston theory, but the more they learned about reality, the more phlogiston seemed to be unreal, and the theory was tossed out.
In the case of Newtonian physics, things came up that it couldn't explain, but it remained a very good theory for most purposes, so instead of abandoning it, it was modified by Einstein, and it is not even more useful.
But the Prog theory doesn't explain anything, and all its predictions are wrong. And the problem is that Progs don't believe in modifying theories to accommodate facts. They believe the opposite, that facts should be modified, or ignored entirely, to accommodate theory.
Over at Alternative Right, a commenter on this post [link], explains it very well, so this is a....
Guest post by: