Being a scientist, you of courser know that "survival of the fittest" means passing on one's gnes and DNA to as many descendatns as possible, and in this, the haredim have an edge. On the other hand, there is also the principle of "natural selection". In this case, it means that haredi families with 5-6 (or 10) children cannot afford to live in the cities of Israel, and must therefore move to the West Bank. where housing is cheaper. This is comparable to, say, a herd of wild cattle being forced out of their natural habitat by lack of grazing-land or drying-up of water sources. Either they find a new, hospitable habitat or they perish.
Law expanding definition of terrorist activity passes first Knesset reading (Haaretz)
from the article: Ultra-Orthodox Jews deliver a population boom to the West Bank