You make a good point that is too often overlooked. A small group of fanatics can bring great pressure on those who would otherwise prefer to be neutral. Consider the situation of the Jews in the Christian religious wars. Or for that matter, the situation of the Jews in Spain as the Moors were being driven out.
I would say it is a rather general situation over the centuries and should never be ignored. It certainly has application in wars over the Spanish peninsula in our era.
If you are not for us, you are against us.
Regards,