Because demsocs are idealists. They reject the historical material reality that the ruling class never give up power willing.
The ruling class believe they are ruling because they are exceptional and because their ancestors were exceptional and their children will be too. They believe they should rule because nobody else can do it because they are sub-human. They believe this even when all the evidence says otherwise because it is in their interests to believe it.
Demsocs believe they can negotiate with people who don't even consider them as human.