Your numbers are simply ridiculous. Over 50 % of Massachusetts residents oppose homosexual marriage. Nothing mushy about it. The next most liberal state in the union, Hawaii, overwhelmingly passed an amendement banning same. You can't simply pick numbers out of the air and represent them as given from the mount.
That's still not a measurement of how passionate that 50%+ is about it.
And a majority isn't ENOUGH for an Amendment. The framers made it delberately painfully difficult to amend the Constitution. You'd better have 75%+ of the country opposing something with 50%+ of that really passionate about it to get an amendment to block that. You don't have that now for FMA, and NEVER will.
And it depends on the precise details of the wording of the question.
Do a poll asking if women should have the right to terminate an unwanted pregnancy, and you'll have 50%+ of the country supporting abortion.
Do a poll asking if women should be allowed to kill their unborn children and you'll have 50%+ of the country opposing abortion.
Again, it depends on when the question was asked. There was a sharp spike (in MA) against gay marriage right after the SJC ruling, but it's subsided.
I'm sorry, I'm having trouble finding polls right now, since Google News search is clogged with stories about today's vote, but I didn't make up numbers. I fully acknowledge that in many states, such as Ohio and Missouri, the numbers have been running somewhat stronger against gay marriage, as the Legislatures in both states have taken up the agenda.
I've never said that the entire country was ready for gay marriage, just that it will find greater acceptance in some places than in others.