>>what if you are more of a moderate <<
What exactly is a "moderate?" What does a "moderate" believe in, politically? I can pretty much describe a conservative. I can pretty much describe a liberal. I cannot describe a moderate. Can you?
>>What if you vote for the candidate and not the party? <<
If you vote for the candidate and not the party, IMO, you don't understand how politics works. Politics, you see, is a game of numbers. We are not a dictatorship here. Individuals, even the President of the United States, have little power. They must seek a consensus. Clearly, that is easiest to do within one's own political party.
You see, I consider myself most closely aligned with the Libetarian party. But a libertarian isn't electable, nationally. So, I have to look at THE PARTY that is electable and most closely represents my views. When I do that, I vote republican.