Yes, it certainly can be. The Crusades and ISIS and 9/11 is living proof of that. In fact, 99% of the wars were fought over either religion or resources. Religion can brainwash you, and turn you into someone who won't listen to reason. The thing I hate most about religion is that it teaches you to only accept one side of the argument as the true answer, and to ignore everything else. That to me is literally brainwash in the name of an imaginary figure.
"I am against religion because it teaches you to be satisfied with not understanding the world" - Richard Dawkins
BIBLE - Blatant Intellectually Bankrupt Lies and Evil
BIBLE - Blatant Intellectually Bankrupt Lies and Evil