Are you being obtuse on purpose?
Child X is put up for adoption. The candidates are couple A, heterosexual and couple B, homosexual. What you say is that in such a situation couple A always adopts the child, for the sole reason that couple A is heterosexual. That's what they call discrimination, based on sexual orientation.
How do you justify that, please?
Or to put it differently: why is it in the best interest of the child to be raised by a heterosexual couple and not by a homosexual couple. What makes the heterosexual couple better parents than the homosexual couple?
Why is the sexual orientation of the candidates to adopt the child relevant?
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