lets look at the children of god cult, a group that condoned the sexualization of children until they faced legal troubles in the late 80s i believe
thats just ONE example - there are countless others
plenty of other groups who take a religious text and warp it to their own agendas
even still. all these books have messages in them that are inhumane/racist/etc. etc.
to try and pin all this radical-so-and-so arguments solely on islam is disengenuous to the larger argument:
that all these religions are man-made inventions. they were made so long ago and their messages have become obsolete. hence, why we can easily pick and choose the insane texts and then condemn the entire faith.
conversly, people pick the GOOD parts of these books and say their religion is peaceful and fair and blah blah blah blah