I think I can.
The first thing to understand is that individual journalists work for and must reflect the positions of the media owners. Ownership of the media is concentrated in the hands of a very small number of people making them truly elite. These media elite are playing for a big prize -- power. They want the power of the United States.
To get power, they must weaken our nation – our patriotism, our religion, our morality, and our individual strength which comes from economic independence and family ties and connections to community and freedom and individual liberties, etc. They also need puppet politicians to follow orders after these media elite get them into office.
And why would these politicians do their bidding? Look at how the media keep them in line.
I'll try.
There is mainstream journalism (daily newspapers, etc) and advocacy journalism. (Village Voice, LA Weekly, gay newspapers, etc.)
Somewhere, sometime, the lines between the two have merged to where there is little distinction between what I read in the S.F. Chronicle (which claims to be fair and balanced) and the S.F. Bay Guardian (which wears its leftist advocacy on its sleeve).
Young journalists enter the profession wanting to 'change things' and often get swept away in their own emotions and ideals. They cease being reporters and become spokesmen. Reporting facts is boring.