Please tell me where he said that.
That would be here. Other notations on Washington's faith can be found here.

1) Witholding a demand for proof on the Christian document,
Just in case, here's a copy of it, with such quotes as "We, therefore, the people of Massachusetts, acknowledging, with grateful hearts, the goodness of the great Legislator of the universe, in affording us, in the course of His providence," and "and devoutly imploring His direction in so interesting a design."

This isn't 1800, we are a diverse population with diverse religions.
So now that it isn't 1800 we need to scrap all our founding documents and write up some new ones?

what does that have to do with anything?
It has to do with the fact that such a document does not, anywhere in it, contain the right to homosexual marriage.

2) Yes, you are trying to impose religion on someone by simply saying "You gays cannot marry because God says so".
False. Homosexuals can marry--we know, because many of them, when they decide to be homosexual, leave their wives or husbands. On the other hand, saying "this homosexual couple is a legitimate marriage now, and if you pay taxes, buy insurance, get loans, or do business in any way you have to acknowledge it as such" is an attempt to impose non-religion on someone.

We are not a Democracy. We are a Republic. We are a nation instituted to give power to the majority while protecting the right of the minority. That goes back to the formation of the Senate and the House of Representatives, which give equal voice to all states in the Senate and greater voice to larger states in the House of Representatives. The Fillibuster is a tool to preserve that, and it seems the Republicans are trying pretty darn hard to get rid of it.
We are not, however, a nation instituted to let the minority make the decisions--or else we wouldn't bother with voting at all.