In all likelihood that quote is inaccurate. Generally, his bombast is a bit more oblique. In any event, it doen't matter to him if arabs are killed in the process of destroying Israel. Remember, he and others in power there are twelvers who believe the world must be immersed in chaos for the madhi to return. In their twisted view, the ends justify the means.
More than 100,000 asylum seekers entered Germany in August, official says (Reuters)
from the article: U.S. Republican candidates split over backing Israeli strike on Iran