that's true for only the Presidency. There are a lot of other offices that affect/hurt us a lot. Besides the Electoral College, the whole Senate setup is designed to limit the power of the big-state majorities.
And I still have a hard time with the idea that a five-point or more margin is considered a big win. Emotionally, I equate a majority with lots, like 70-80%. There may be a majority willing to vote Democrat, but I'll stick with my assertion that most Americans would not call themselves liberal.