On the bundling of issues in politics, yes they do bundle. There are two mainstream agendas in U.S. politics, Democrat and Republican. Each group bundles their agenda, or goals, with the critical topics of the time. This is done to accomplish the things that most people would never agree to. Weather that be liberal or conservative.
The hot topics like economy, gay marriage, health care, housing, 2nd amendment rights, etc..., are used to pool voters into a voting block. The media uses these voting blocks to sell their product and potentially effect their agenda. I would call them the third party as they have about as much control even if it isn't actual authority.
We, the people, are driven to have discussions like this that don't really get anyone anywhere because the topics we are discussing are all about perspective. It is as futile as arguing religion.
I think the real point in all this, is that our time would be better spent discussing how to control our elected government the way we want rather than how they (the parties) want. Everyone is selling us the idea that we must focus on these certain topics because 'that is what is important'.
This has gone on for so long that we are now at a point where people are arguing social politics when the country is on the brink of economic collapse. There is one thing for certain we can all agree on. If the economy completely dumps, none of us will have anything and there will be no money or social benefits to be given by the government. All I would ask anyone on this upcoming election is are you willing to potentially piss it all down the tube to win politically.
The center is probably 75% of this country and the the 25% is dividing us. Very frustrating! Sorry for the long post.