Hypocrisy.
As Maya said, it would have been hypocritical for her parents to back off their beliefs just to suit her lifestyle.
MW: Did you at any point think that your being gay could change their minds about homosexuality?As I stated in post # 432, I sounds like the issue exploded when Maya started becoming an activist for nearly everything her father is opposed to--after she publicly aligned herself with anarchism and accepted a public speaking engagement promoting homosexuality.MARCEL-KEYES: No. My parents believe what they believe because of their religion. My mom, if possible, is even more conservative than my dad. I didn't think it would change anything. If you think that something is morally wrong, just because somebody you know is doing it doesn't mean that you start accepting it. So if people like my parents really believe it is a sin, then because I'm sinning isn't suddenly going to make them stop and think, "Oh, well, it's okay now."
MW: You admire their dedication to their principles?
MARCEL-KEYES: Yes. They have a lot of integrity. I think they're wrong on this issue and I wish they would change, but I don't think they're going to.
....
MARCEL-KEYES: He cut off all financial support, but that's something that I can totally understand. I am working for things that he's directly opposed to. It doesn't make much sense for him to be [financially] supporting someone who is working against what he believes in.
Now, suppose Alan Keyes continued to financially support his daughter, had her continue working for his conservative organization, continue living at an apartment paid for by this organization, all the while she is openly involved in homosexual and anarchist politics. Even she agrees that “doesn’t make much sense.”
One more time:
"MAYA: But when I actually acknowledged it publicly, then it was sort of like 'Oh, gosh, we can't be having that around here.'""
Therefore the big breakup did _not_ occur because she was a lesbian.