There's an old saying: Democrats focus on how the world could be, Republicans focus on how the world is. My problem with that Republican point of view is that there is no room for growth. I know of another old adage: shoot for the moon and you may land among the stars. Even though that adage is flawed since the moon is closer than the stars. Whoever made that up sure is an idiot.
The concept that Democrats focus on how the world could be, while Republicans are more of realists, is where this spawns from. Democrats aren't naive to the world, but we also see that it's worth going through the extra trouble to change and shift things to make a better world for everyone. No on said our plans were easy! YOu know what's easy? Just keeping the status quo where the rich are rich and the poor are poorer.