Kristen,
There's a lot of truth in your blog's statements... but, as you pointed out in the onset, in order to deal with your topic it would "require that I do some generalizing here..." It's not the generalizations that flaw your blog... it's the assumption that the mainstream Christian blogs, or the various organizations with bully pulpits are what they say they are: Christian. 

Jesus himself gave us a litmus test by which to tell if everyone who wears the name "Christian" are truly followers (disciples) of Him. "By this all will know that you are My disciples, if you have love for one another." (John 13:35)

So whether the people you're referencing are currently viewed as mainstream Christians, or are the most vocal or prolific Christian bloggers, this does not necessarily make them true Christians or Christ followers. The true BODY of Christ will always have the same genetic make up as its Head... and God did not manifest Himself in the flesh as fear or hatred, but as the physical embodiment of LOVE.