It is, Of course, a human condition. Most people love to generalize. Such as, all Christians think the same. Or, all Muslims are on a jihad. Some people have come to a point that they only see what they want to see. And, the worst part is the television news. Most people can not use their own minds to understand that much of the news is about the view of the news network, or the person giving you the news, such as, many of the mainline TV networks, CBS, NBC, ABC, etc.
If people would just use their heads a little they would see how each person or network puts their own slant on the coverage. So, today in the US what do you think most people believe about Iran and how "all" the people of Iran are because of what Iran's president says? Probably a very high number. And the war in Iraq is all about "bad" Muslims wanting to kill anyone and everyone, yet most people can't see that most Muslims in Iraq have nothin to do with the violence. And isn't the new government mostly Muslims? And aren't the new Iraqi police forces and army mostly Muslims?
And so 9/11 happened. Most of the highjackers were Saudi's so all Saudi's are would be highjackers and since they were Muslims who claim to be on a jihad, then all Saudi's agree with this. Which is surely not even remotely true.
I have tried to express my views in my answers which show that with all the people of the world there is much more that makes us the same then makes us different.
Of course in your question you generalize to. "Christian bashing Islam" is in your question. Personally I think that few Christians actually bash Islam. But some do. And most "bashers" on here are just anti-religion.
I don't believe in evolution, so...........I must be stupid......and uneducated.........I am a fundie.............I hate homosexuals.......I am against womens rights...............I am intolerent.............etc and etc. Or many on here tell me, anyway. Many believe that each issue is a battle that needs to be fought and so will go along with anything and everything that is said bad about the other side, no matter how unreasonable or incorrect it maybe.
Peace.