Well, it's not really relevant to a legal discussion, but FYI, you are missing the main point, which is that she and her family deliberately concealed the truth about their genetic disorder, despite being asked directly about it, a clear indication that it was a matter of importance to me and my family. If she and her family can tell a bald-faced lie about something this important, then one must worry about what else she has concealed, or not told the truth about? Perhaps she has concealed a large amount of debt, had an affair and the kid is not mine, was married before, etc... Trust is the foundation of marriage. Should a spouse forgive their partner for cheating, or is maybe that why people decide to get divorced following infidelity?
As for people's attitudes towards genetic disease, it just happens that in my family, it matters. It's not the right of someone who doesn't think it matters to coerce anyone else into their situation and viewpoint. I do not think it's ok to use dishonest means to reach whatever ends you might have.

