It's a sad day for this once noble party. This wouldn't fly in the Democrat party of my grandma and other New Dealers. It wouldnt fly in the vein of my idealogical ancestry of the Bourben wing of the party led by Grover Cleveland. I'm also sure Jefferson, Madison, Monroe and Andrew Jackson would flip out on the Democrats of today(they'd flip out of a few Republicans too but not on the Paul wing).
GOP: stand your ground regarding traditional marriage. You are on the right side of history and eternity.
Truth be told, there were many Democrats of those days that have been attributed to the darker history of the party. I'm sure you weren't considering the Klan enablers when you wrote that message, but there are many Democrats that today's party wouldn't affiliate itself with unless they were to renounce their past actions. Besides, gay marriage wasn't an issue back when any of those guys you mentioned were around, and Ron Paul wasn't even alive at the time. Way to namedrop.
The truth is, the country you are living in is going to be very different thirty or forty years from now, especially on this particular issue. The voices of certain naysayers will persist, but as nothing more than imperceptible white noise.
It's time to evolve.