I read the critique you posted, but really it's a critique of just one article posted on that blog, not the blog itself. I'm not even sure the critique makes sense for that article. I haven't read the article it's referring to, but the excerpts in the critique don't support the points its trying to make. For instance, look at the first claim, that the article is calling for a holocaust against Muslims. The author quotes another blog, not Gates of Vienna but Little Green Footballs, saying "At Gates of Vienna, an author referred to as “thoughtful” has a piece that lovingly describes the coming genocide of Muslims in Europe."
Note, not calls for, but describes.
And the critique has this quote from LGF (not from Gates of Vienna):
‘If violence does erupt in European countries between natives and Muslims, I consider it highly likely that people who had never done anything more violent than beat eggs will prove incapable of managing the psychological transition to controlled violence and start killing anything that looks remotely Muslim. Our unspoken conviction that we, in 21st-century Europe, ‘
[emphasis in the source, not mine... also, the abrupt end of the quote is as in the source, not because of me... also the extraneous single quotes are in the source... what I'm trying to say is this source is poorly written]
It seems pretty clear that this moronic author bolded that line and said oh look, they're calling for people to kill anything that looks Muslim, that's a holocaust.
Clearly that's incorrect.
That being said, I'm not familiar with the Gates of Vienna blog, so perhaps it's true they post radical viewpoints. That does not mean that everything they post is incorrect, and having looked at the article about the crusades, it's pretty accurate. Do you disagree? If so, I think it's more fruitful for you to share that disagreement directly, not link to a 3rd party blog filled with vague criticisms that hardly even make sense.