I'm asking, not from an ideological standpoint, but from a self-interested standpoint - what political party in America benefits a person with membership more? More probability of political connections, increased connection longevity, access to more better situations overall?

Is there any difference? Or are they completely equal? With demographics as they are, I assume that's not the case.

EDIT:

Pretty much nobody understood what I was asking. I wasn't asking for what beliefs were correct. I was asking for what political party would most benefit me for work and political influence.