I like Baen - their policy on DRM, their focus on SF, their search for old and new authors to add to their selection. Because of Baen, I've discovered new authors, new ideas and most importantly new SF. Bottom line:
To the politically minded, all things are political - even when a reasonable person would see no political leaning or intention in the writing. This is not to say that there are no authors with a political agenda in their fiction writing, but for me it has to distract from the story to be noticeable. I just don't see it in the vast majority of what I have read from Baen, and I have read a lot from them.
I like reading SF and other types of writing. To search out publisher bias seems a waste of time to me; I'm too busy looking for my next great read.
Dean