I guess you got downvoted for both-sidesing it(Upvoted, btw :D)? I mean both parties do quite suck, even though I still think the GOP is actively harmful, while the Democratic party has good ideas that it fails to build on.
The actual party policies only really diverge on social issues. Economic policy consensus has been corporatist since the Reagan years. The main difference is the democrats are willing to blast out the occasional one-off stimulus and the GOP is also willing to do that but a smaller one-off stimulus.
I don't really see collectivism vs individualism as a left-right split. The religious conservative wing of the right is culturally collectivist, the catholic conservatives are also pretty economically collectivist. The liberal mainstream is highly culturally individualistic(well... within the boundaries of acceptable lib behavior). The left can be almost culturally atomistic, if you go into the disown your racist/homophobic relatives areas of the ideology.