I agree with that analysis. It appears that people like Schulz and Juncker who make so many outrageous statements in recent days are in reality reflective of the thinking of the political elites in general, hence the difficulty of bringing about real change.

If the issue is that they're suffering from a kind of groupthink (and I strongly suspect they are) then having one of their members tossed out and replaced by someone who is actually against the group might be sufficient to break it.