All those articles really are sad...it's sad to think people as small-minded as this still exist...it's disgusting. However, it's not representative of Islam. It's representative of poor people with no education and no understanding of what religion is supposed to be. This is not all that different than extremely religious Christians who toss their teenagers out of the house or disown them for having sex out of wedlock--or even just getting caught with someone of the opposite sex. Or, you know, they also beat them to death...or, if the kids are lucky, near-death.
Stuff like this happens in every religion, everywhere around the world, for every kind of reason...this doesn't represent anything.
By the by, the kid getting his arm run over...it's a stunt, nothing more. Why the heck would they put a bunched up blanket under the child's arm if they wanted to hurt him? It's a common stunt a lot of magicians do. A grown person does it, then they make a kid do it. It's just to get some coins tossed into their hats. If you want to tear Islam apart--not that you need help--use things that are actually true.