They bring danger to Israel as well as the USA. They know full well that what they are doing is criminal and they ignore it citing their religious fanatic belief that their god gave it all to them. This is even more of a reason why they need to be at the dock in the Hague more than anything. They are civilians but they are not innocent.
Italian FM arrives in Iran to promote economic, political ties (Reuters)
from the article: West Bank settlers suspected of attacking Palestinian child