So those people in California are citizens just like you who pay the same federal taxes and have the same rights yet when it comes to voting for the President they do not have have those same rights. It might be annoying to us that they are all "liberals" or whatever you like to brand them with but they are people with equal rights and deserve equal vote. If it means that the majority of the country is made of these "liberals" that we dislike or disagree with then so be it, but that's what it means to have a representative democracy.
A representative democracy by definition means that each vote does not count exactly equally.
My point is that while the current setup probably dilutes CA liberals voting power the most in terms of the EC, there are other ways the system works that is particularly empowering to CA liberals.
I don’t want to be repetitive with my other comments, but I think a good example is environmental regulations CA passes for automobiles effectively setting standards for the country.