What's Your Definition of Mainstream?

Recently, a high school friend of mine, who likes to challenge me politically, drew a conclusion that I considered Bill Maher "Mainstream." Maher is libertarian, and a celebrity, and not what I would consider Mainstream. I have watched his shows for years, though. We don't always agree, but I still like him.
I'm independent. And I have little tolerance for the cat fighting between Republicans and Democrats. I think the arrogance of the Republicans and the ignorance of the Democrats is staggering and utterly ridiculous.
To the Rush Limbaugh Republicans, Tea Baggers and the Wandering in the Desert for 40 Years Republicans, I say: Unite! Get your party together. You're fragmented. Figure out what you stand for and unite.
To the Democrats, I say: WAKE UP!
To both parties, who are still talking about Clinton lying about a bad blow job, (not lying about a matter of national security, but a sex-related issue) I say: While Newt was trying to bust Bill, Newt was having an affair. And while Bill was having to deal with his publicized sex life, he still managed to eliminate the deficit and leave office with a surplus. GET OVER IT!
All of you who get your panties in a wad over the mention of Clinton, or sex for that matter, are either lacking it or cheating on your partner. I always had money during the Clinton administration and I still think he is a damn good economist.
With that said, what is Mainstream to me? Mainstream, so far, has not been represented by an individual or party. Mainstream, are people who go to work every day, or own a small business, have little or no savings, have little or no health care, can't take vacation or go very far for very long if they do and have very few tax breaks. 
Mainstream runs your local taco shack, your local print shop, your cleaners, works in your grocery stores and your bakeries, waits on you when you go out to eat and cooks your favorite dishes at your favorite restaurant. Mainstream is the guy/girl who fixes your car, who delivers your packages, picks up your garbage, tends your garden, cleans your house and owns the local laundrymat. Mainstream is you favorite bartender at your local bar, and the receptionist at the water company or the clerk at the electric company.
Mainstream is not Corporate America. Corporate America tries to make Mainstream believe they have their best interest at heart. But they have their own agendas and Mainstream is just a pawn.
Mainstream is the un-united core (not corp) of people that keeps America functioning.  And, last time I checked, in all actuality and reality, they have no representation. 
This main core of America is used. They're used to pass agendas and to gain political power. They are vulnerable which makes them easily manipulated by political promises. And they're at the mercy of a predominantly two party system that can never agree or work together.