Supporters of the "disengagement plan" say that it will help solve the demographic problem. This is of course a political ruse. The Arabs in the Gaza Strip already have autonomy and they do not vote in the Israeli elections. Destroying the Jewish communities in the Gaza Strip will not improve the demographic situation at all.
The government is indeed occupied in deceiving the public. They talk about the demographic problem, while easing restrictions on the immigration and naturalization of Arabs from Judea and Samaria who have married Israeli-Arabs. Read the link and see what the government is up to.