> Does his opposition of homosexuality some how make his point about writing critiques less interesting?
i'll bite: yes. it belies a lack of compassion, imagination, openness and curiosity required to create compelling fiction or writing advice that resonates with people who aren't bigots.
Orson Scott Card is one of the best selling sci Fi authors of all time, and has won the hugo and nebula award multiple times, and has been translated into 35+ languages. I think you would be pretty hard pressed to show that his writing isn't compelling to many people.