Jews are a smaller group. Being smaller generally entails being more tightly knit. There are over a billion Muslims, and even more Christians. The larger the organisation, the lesser and looser the bonds between the people within it.
That means that Christians generally don't give a toss what is happening to their brethren in the Sudan or Balkans. Or even in the Holy Land, if Christian indifference to the plight of Palestinian Christians is anything to go by.
There is an American solider called Bowe Berghahl who has been held by a Taliban-allied militia since September 2009. The US is not negotiating for his release, and has no plans to do so. The Haqqani network has offered to release him for 21 Taliban prisoners, which is a modest proposal compared with the deal that Hamas reached for Shalit.
http://en.wikipedia.org/wiki/Bowe_BergdahlNaturally, the reason why the Taliban is asking for far less prisoners than what Hamas sought for Shalit is that the average American doesn't actively care about "the troops", and the Taliban knows it. The Israeli army is a conscript army, meaning that everyone has a stake. The US Army is all volunteer, meaning that only the predominantly poor and working class slobs that make up its ranks have a stake. That means that you can find homeless people on the streets of American cities with Bronze and Silver Stars pinned to their chests. It also means that the US can get away with paying scandalously low wages and benefits to its enlisted men, as well as offering them practically no support.
As can be seen here:-
www.pbs.org/wgbh/pages/frontline/woundedplatoon/view/
Of course, this has really nothing to do with Islam, unless you want to make the same criticism of Christianity.