People have used the Bible to justify war, genocide, murder, racism, rape and anything else someone with an agenda wants.
That some would use random writings of barely literate goat herders from 2,000-3,000 years ago to justify shunning, breaking up families and heartache now is not at all surprising. But doing so says more about the moral character, intentions and basic human decency of the group of people in the 21st century than it does those goat herders.
Chris