Please... The Democrats were "fatally flawed" and "doomed" after 94'. We've heard this before, about both parties. Hooray for knee jerk reactions and myopic viewpoints.
There have been extended periods throughout American history where one party dominated while another floundered, yet within our system the down and out party always found a way, eventually, to claw its way back to the top.
There is nothing on the horizon I see that would change this trend short of the emergence of a viable 3rd party. Repubs have too much money and power to just fade away without somebody else filling the vacuum. This country, despite its past few elections, is still a slightly right of center nation politically. While it may take more than a cycle or two, possibly more, I certainly expect Repubs to make their way back to the top and we'll be listening to Darrin/Yoni etc make these same idiotic threads about dems.
All that said, I do agree with the OP on several of his points, chiefly the negative impact of social/religious conservatives.