Its a major issue. You are talking about the very fabric that hold society together. To destroy that fabric, without getting into detail, you destroy the society.
Go ask the Romans and Greeks - took the Romans 1000 years to accomplish what the US will do in 250 years. Gays trying to marry is part of their downfall since it represents their society falling apart. What it eventually leads to, this and other things, is a country (or republic or empire for that matter) that no one is willing to fight for. This is just one part of the puzzle however. Another is a here now attitude vs. leaving something for your children, etc. But this isn't of course happening to the US (Choke!...Sarcasm!)! This time, it will not be the Germanic tribes walking across our borders....
But of course, you can never tell what is going to happen in the future by studying the past (Sarcasm...choke...choke!)!
-S
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