Um, if Canada legalizes gay marriages, do you think many of the American homosexual population will move to Canada? Hmmm. Maybe that wouldn't be such a bad idea!
If homosexuals do move to Canada the result will be an increase in virility in both countries.
I don't think homosexuals want to live in a sort of gay "normal" marriage so much as they want to destroy the very concept of marriage itself. Moving to Canada doesn't achieve that for them.