It's the Democrats fault that the Republicans are so difficult

WARNING: For the sake of this article I am writing it from the perspective that Democrats have a better platform then Republicans. It's just easier than getting into what I agree with them about and want them to get done.

The Democratic party has really painted itself into a corner. If you've been following the news at all, you know that the Democrats keep passing bills in the House, only to have them killed in the Senate. Don't get me wrong, the GOP are mostly at fault. They could be leading this country. But they rather play stupid games, because they don't actually stand for anything, Not even the things they campaign on.
As previously described on this blog, when Democrats wrestle power away from Republicans, they continue abuses instead of ending them. A lot of the really shady things Republicans when they controlled the Congress are not being continued  under Democrats. For example, Republicans would change the meeting rooms for committees without telling the Dems on the committee where they went. This isn't because Democrats are more mature, it's because they wouldn't dare. I don't know why, but they just wouldn't.
Democrats are painted in a corner with Republicans because they are so concerned with winning that they have become a pale reflection. You can't drain the swamp just to replace it with a marsh. Republicans raise a bunch of money from corporations and Democrats go after corporate donations (great footage of this in the documentary 'An Unreasonable Man'), Republicans become jingoistic Democrats put on flag pins, and when Republicans faith up policy Democrats get spiritual advisers.
This wouldn't happen if the Democrats and Republicans were not using the offices they hold to make the hill for third party and independent candidates impossibly steep.
From nature we learn that diversity is in itself a defense against cataclysmic failure. In this case the Republican party has been infected with hyper-competitiveness. The reason they are so much better at making the competition look bad is because they care about it more than being effective policy makers.
If Democrats would work to level the playing field for third parties, they wouldn't have this seemingly insurmountable coalition of naysayers against them. True, they could be risking some of their own seats, but this would give Republicans competition where they are running unopposed.
When I was running for Congress in the last cycle, and couldn't get in the debates because i wasn't in the primaries (perk of being a write in), I still called them out on trying to shut out the Libertarian candidate. If Democratic candidates would do the same thing, they could conceivably strip enough votes away from Republicans to close the gap in a tough race. In a real upset, a Libertarian candidate could win, and actually allow headway on issues like ending DADT.
The kicker is that Republicans are already using third party candidates in some places. They've been giving money to Green Party candidates in some races.
Wake up Democrats! You've not only made our government a two-headed monster, you gave the other head bigger teeth.