First of all you say "they" as if they're one large hivemind of people with the same feelings and thoughts toward everything.
Secondly, Muslim countries do have their leaders to blame for the stuff in their countries, but you can also blame Western countries who have exploited those Muslim countries for financial and political reasons and continue to do so. THAT'S one reason a lot of muslims in the Middle East don't like westerners.
The whole Muslim vs. Westerners stupidity is just a bunch of retardation being spewed from both sides, like most big conflicts.