Let's make one thing clear, my opinions come from reason and logic of 'cause and effect'. These things liberals and you lack.
A morally liberal position remains morally liberal regardless how [it] is derived... Pleading 'logic' is no saving grace and is tantamount to the millions of saddened leftists who plead a lack of 'critical thinking' when describing the masses that oppose the liberal agenda they would impose upon the USA.
Why should everyone in society be forced to accept a marriage founded on male-male copulation as the rational and moral equivalent of traditional male-female child-rearing marriage?
What "logic" do you subscribe to, anyway?
Homosexual monogamy is not logical, nor is it a cause or effect of mammalian reproductive biology, it is a sterile fetish cult...
Your opinions come from the toilet...