Mr. Farukk, first, have no clue what half a billion means. The whole Hindu nation is 1.2 billion. Those Arab countries will NOT survive without the Hindu brains. None of them Arabs, like you, can barely count. Ask the prosperous Muslims in India (Shah Rukh, Azharuddin, Slaman Khan, Sania Mirza, etc. etc.) if they would have had such a wonderful life in Pakistan or for that matter in any Islamic country.
On another note: That Islam is the fastest growing religion is a complete lie created my the mullahs. There are several studies to show that Islam, in fact, is losing its devoutees by thousands a day to other civilized religions - just browse around the Internet, there are tons of credible studies to confirm this. In the US, innocent blacks that are in jail get converted to Islam because the Mullahs tell these poor illiterate prisoners that Islam is a religion for criminals easily absolves them of their crimes. For every Islam convert, there are a thousand that leave the rotten religion in the former Soviet Repulics, check it out, itis a FACT.