We're getting married next year. I am not sure whether to invite my older sister's boyfriend. We (my siblings and I) are mixed race. He has circulated material that I find racially offensive; as did all others in our family, including DP, but not her. she doesn't seem to understand why his views have offended us? Do I invite him to keep her happy and keep the peace or do what would make DP and I happy (and certainly upset her). She is a bridesmaid.