You never get Palestinian Christians blowing themselves up on a bus.

This is entirely false. There have been Palestinians Christians who have committed suicide bombings.

Many suicide bombers are not Muslims. Suicide bombing is the product of occupation of countries by foreign governments. It is not a product of religion.

Your blatant racism, on the other hand... what should we attribut that to?

Here's a little exercise for your apparently feeble brain... if one in ten people from your part of the world were racists, would we be able to extrapolate that being from your part of the world caused people to become racist?