I almost didn't even vote this last election because I didn't like any of the options. It amazes me that the parties can not come up with new blood that has new and interesting ideas.
Mainstream politicians don't care about interesting ideas.
They only care about lining their own pockets and those of the lobbying groups. That's pretty easy to do and it amazes me that over 350 million people can't/don't try to organize to remove them all.
The current climate of partisan extremism makes it even easier. As a general population we are pretty stupid.