Repost: How has gay marriage being legal in Canada caused harm to heterosexual marriage in Canada?

I ask sincerely, because many Christians in the USA claim gay marriage being legal there will harm heterosexual marriages. If their claim is true, we should already be experiencing these negative effects since gay marriage has been legal here for some time now. (If this question offends anyone they... show more I ask sincerely, because many Christians in the USA claim gay marriage being legal there will harm heterosexual marriages.

If their claim is true, we should already be experiencing these negative effects since gay marriage has been legal here for some time now.

(If this question offends anyone they shouldn't be on the internet, as I asked this in a way that was incredibly neutral)

(22 answers last time, not one supported the position that gay marriage hurt Canada)
Update: @ Jack: So why are you against gay marriage again if it doesn't hurt anyone?
Update 2: @ Jack: But what negative effects were caused?
14 answers 14