Where? Care to post a link? As per Islamic point of view, it is 100% okay to marry cousins or even children of your father's other wife or wives. Like, 4 wives thing, this is looked down by many ignorant ppl, but there's nothing wrong with it. Absolutely fine.
i dont care about cousin marrying eachother as my parents are cousins...but buddy,what u said in red... that is like marrying your sister/brother ... and thats absolutely ridiculous!. a child of ur father's other wife is your brother/sister.