I think the "sense of entitlement" actually comes from most of today's Demonrat leaders growing up very spoiled in permissive households, reaching "maturity" in the 60s & 70s. They have always gotten what they wanted, usually without working very hard, and still expect their every whim to be gratified, including access to abortion at any time for any reason. Bush threatens to change that pattern. They also know they control the MSM, academia, and the foundations, so it infuriates them when someone manages to beat them anyway.