I don't have much personal knowledge of Muslims as friends, other than people I knew in college who were often the sons of Middle Eastern elites who were anything **BUT** homosexual and definitely wanted to acquire lots of Western girlfriends. However, what you say makes sense about limited opportunities for Muslim men. It may add some special poignancy to the way that offers of marriage to beautiful women are sometimes made in Muslim countries with a significant Christian subculture as an inducement to young Christian men to convert to Islam.
However, what I find interesting is how different this apparent Muslim practice of homosexuality and pederasty (relationships between adult men and boys) is from the way other cultures with a lack of available women have developed.
Take a look, for example, at what's happening in Asia due to female infanticide. The average lower-class Chinese guy knows he has little chance of finding a wife or girlfriend, but the response isn't homosexuality.
I realize that male prostitutes and young boys being pressed into homosexual relationships are not unique to Islam. Historically we've had our own problems with this in the West, not only in ancient Greece but also in the more modern world — think, for example, of the Castrati, which persisted into the 1800s.
However, there is something really, really bad about Muslim culture and its relationship to homosexuality.
The more I learn about cultural effects of Islam, the more disgusted I get.
Male homosexuality is punishable by death in sharia, but it doesn’t count as homosexuality if at least one of the partners has not yet gone through puberty. Therefore, boys without pubic hair have been permitted since the time of the Prophet, and have constituted a significant segment of the Islamic slave trade for sexual purposes ever since. I grew up in a city with a big gay subculture and thought that I was wordly, but I was shocked/disgusted at the degree of homosexuality/pedophilia that I saw in Afghanistan. A rich young Kuwaiti girl who was hitting on me once frankly discussed the homosexuality/bi-sexuality in her circles. She estimated that more than half of her family and friends would do same sex partners.