It's more about tone than numbers. I don't mind the forum being 60-70% lefties. My problem is with grand unified theory statements* about how the GOP is the root of all evil, a refusal on the part of some posters to argue in good faith ("Socons just want to control women"), and insults from some of the red avatars.
Case in point:
Why? Why would we want to turn the Atlas into a simple extension of contemporary society by injecting it with a mass of capitalist swine? I doubt even the resident right-wingers would like that!
There are plenty of left wing posters who make excellent contributions to the forum, and blue avatars should be able to defend their ideas from criticism. The issues with a Dem majority only come up when the quality of discourse goes down.
*As Torie puts it.