That´s because you are both morons and ill intended.
The OP explicitly asks about Christians as a social block should be doing, not as an army or anything like that?
Organizing themselves politically, to push for certain kinds of laws, vote for certain candidates, protect their way of life as a whole society,etc...
Yes, I talk about violence, because, violence is part of our reality, and any society incapable of it, at least, to defend itself is most probably doomed to disappear.
The picture is a picture of a crusader, those who defended occident against the land grabbing and religious abuses of a more intolerant Islam, that it was known, before the time.