And are those really settlements? Why worship that word and definition that may be wrong? Those territories are disputed territories at worse, or rightfuly Israel's given the democratic manner in which they were acquired given it was a democracy acquiring them in war in due process and balanced manner. Even if they were settlements, what is wrong with immigration there if it is not wrong for arabs to migrate accross the world?
People have to remember that Jews are in Israel not to displace people, but not to displace people of other nations as diaspora, for Jews are to worship G_d and demonstrate their love by confining themselves with G_d (Rabbis mention it as an interlocking marriage with the Jewish people as the bride) in Jerusalem. Jews moderate their consumptions and separate themselves thus from consumerist animals by producing blessings of quality (while Christians focus on blessings of simplicity as mode of restraint).
Again, Jerusalem and settlements are not about taking land, but about giving diaspora land back to rightful owners, restricting hence consumption to Jerusalem. Jews live in sin when not in Israel and have to constantly atone for it. Arabs by the way never took care of this region as it was wasteland before the Jews paid with sweat and blood to develop it.