Who is the bastard here? (see the details)

I found this song:

http://lyricstranslate.com/en/bâtard-bastard.html

You can listen to the original in the video.

I’m trying to understand it. Who is the bastard in there? The ones that always take sides, or the ones that never take sides? Or both of them?

The first and the second verse seem so contradicting…