Not knowing your brother, your parents, or you, it’s difficult to assess the situation properly, so I’m just going to ask you a few questions:
Are you and your parents giving your brother a feeling of love and long-suffering and patience or the cold shoulder?
Is your new sister-in-law going to feel welcomed into your family and willing to seek a good, solid relationship with you and your parents if you boycott the wedding?
Is your brother going to be more likely to hear you out in the future if you go to this wedding or if you boycott it?
Look, I understand how difficult this is. My sister is getting “married” sometime in 2010, and she’s promised me an invitation, but she is “marrying” another woman, with whom she has been living for several years. Obviously, I can’t go to that event because of the illicit nature of their entire relationship.
I’ve looked at my situation from every possible angle, and I’ve weighed every possible response, searching for the most loving and Christ-like way to say that I can’t be there. It doesn’t matter – she’ll be ticked off. She’s already bucking for a fight. She’s eager to be able to point out to the rest of the family that I’m the crazy fundamentalist Catholic who heaps judgment on others, such a hypocrite, such a horrible, horrible person.
But if I go, she’ll call me a hypocrite for saying I’m Catholic and then celebrating her “wedding,” which is exactly opposed to Catholic teaching, and that’ll be her proof that Catholicism is schmucktacular. Really, the woman hates Catholicism so much, she’s going to call me names either way, so there is no point in me going.
Honestly, if my sister were marrying a man in a church by a real minister instead of a woman at the city gardens in a ceremony performed by a pal who got “ordained” on the Internet, I’d go. Is it ideal? Nope. Is the marriage licit? More than likely not. But by going – not participating – I would be showing her that I want to have a relationship with her, and hopefully building that relationship to the point where I can gently and humbly point out the truth as long as we both live.
Please think about this carefully. What’s your job here? To condemn him or to win him back to the Church? And what’s the best way to do that? Maybe he’s the type of guy who really needs you to draw a line in the sand. Maybe that will make things worse. I don’t know, because I don’t know your brother. You’ll have to answer that yourself.