Since, there is a Ryder family, do you think they would ever attempt to offer an incest romance? Or is the world not ready for that yet? Bioware has always been a progressive company, and in this case, we're talking about a consensual relationship between two adults. If you disagree with this, that's fine. But at least try to give me a reason other than "its gross".
If anything, the controversy should at least cause for some hilarious reactions from Fox News and BSN.
One might look at the other aspects of inclusiveness and reach the conclusion that it makes incest okay, and one could voice that conclusion for two very different reasons.
1. To show that the earlier inclusiveness was a mistake. If one can demonstrate logical equivalence between incest and homosexuality, while maintaining the disgust most people have for incest, one might be able to undo some of homosexuality's acceptance.
2. To show that the disgust people hold for incest is misplaced. If one can demonstrate the logical equivalence of incest and homosexuality, while also emphasizing the broad acceptance homosexuality now has, one might be able to create broad acceptance for incest.
Either of these approaches should work, but neither will, because people (to their detriment) tend not to approach these topics logically.