I don't want to sound flippant about the post but these "conversions" sound more like a post-adolescent, trendy sort of attention-getting rebellion. I doubt that such really understand Christianity or Islam except in a very superficial way.
What should be of more concern is the increasing appeal of Islam to the black underclass both here (where an estimated 1.5 million blacks are Muslim)and in Britain.
Speaking of Britain, one of my favorite contemporary writers is the psychiatrist Theodore Dalrymple. In a celebrated essay that David Brooks of the N.Y. Times said was the best journal article of 2004, Dalrymple explained the appeal of Islam to Britain's black criminal class. I'll quote a piece from that essay:
He says Muslim literature in prisons is primarily directed at "...Jamaican prisoners. It answers their need for an excuse to go straight while not at the same time surrendering to the morality of a society they believe has wronged them deeply. Indeed, conversion to Islam is their REVENGE UPON THAT SOCIETY, for they sense that their newfound religion is fundamentally opposed to it. By conversion, therefore, they kill two birds with one stone"
Now that syndrome is REALLY something to be worried about.
Yes, very much so.