Regardless of semantic games, I think there's a clear difference between "terrorism" that focuses on attacking civilians and "terrorism" that attacks a government. Both can be construed as rebellion, but the means they allow themselves to use is important too. If, for example, the USA turned into a theocratic dictatorship, and you decided your only recourse was to fight back, would you blow up bombs in shopping malls? Or would you be trying to minimize civilian casualties? There is a moral difference here that shouldn't be ignored. Regardless of how it gets labeled, it isn't the same thing.
However he's right to point out that Christianity (via the Old Testament) does advocate violence against homosexuals and women and such, which is problematic.
I think this is a bit disingenuous, at least as written. Obviously, the vast majority of Christians, as well as their leaders, are
not advocating violence against homosexuals and women. It's not a part of behavior
or doctrine. How many churches can you walk into and find somebody preaching such violence? Sure, there are a few, but they are the minority. And don't try to claim that the Bible defines doctrine: not all churches interpret it the same way, or even literally. It's more complex than that.
At the very least, there is that common willingness to believe in things that don't make any sense, these guys just took it too far. It was possible for them to do this because the framework was already there in their heads that allowed them to consider true things for which they had no evidence.
For those of you claiming that religion does cause these problems, you are deluding yourself about human nature. People come fully equipped with the ability to believe things that make no sense and/or have no evidence. People, unfortunately, are perfectly capable of rationalizing terrible acts with or without religion.