It's not generalization, and I can see that within the context of neoliberal economic theory, democrats and republicans can seem miles apart. Indeed, they are miles apart in that context. Certainly democrats in general can be found doing there best to mitigate the destruction wrought by ruling the economy by the neoliberal viewpoint.
My viewpoint would be that differences contained within that context are not as meaningfully different when you look outside that context towards economic theories that bring more political democracy within the workplace and the ownership of workplaces. Essentially, since the Enlightenment and especially after the increasing urbanization of America, we've seen a democratic political process largely manipulated by an oligarchic and non-Democratic economic sphere and workplace. As citizens were mostly locked out of the political process during the reign of monarchy, so has the working class been effectively locked out any sort of meaningful economic power. The only way to acquire meaningful economic power remains to leave the working class and attempt to join the ownership class as individuals.
Neoliberal theory isn't a real theory. It's a catch all for those that want more privatization, less regulation and less government interference in areas that the market can operate. It isn't really a economic theory. you aren't going to read about that shit in an economics class.
Obama is a Keynesian, republicans are mostly supply-spiders, Friedman followers with Austrian theory being sprinkled in more and more.
The rest of what you say is mostly red herrings.
You say citizens are locked out of the political process and that is not really true. Has the response of representatives been perverted thanks to certain forces in our system? Absolutely. But we aren't locked out. Just look at gay marriage for instance. It was, more then anything else, the overwhelming shift in public acceptance that allowed and pushed politicians to take a more liberal stance. Thus pushing the progress of much needed reformation of LBGT rights
But to your larger point about steady erosion of democratic rights and the process, do you think we would of had a favorable ruling about non-partisan redistricting with another conservative judge in place of a liberal judge on the Supreme Court? That ruling that went in favor of democratic rights is one step closer to closing a structural flaw in our democratic process from our founding that has led to party manipulation of voting districts. That has stifled the ability to get fair house elections. Now who do you think falls on the side of nominating a Supreme Court judge that will rule favorably on such issues going forward? Hillary or any republican? Hillary of course. Which puts her in the side of advancing democratic rights and fair elections.
That is why these generalizations of yours are so worthless to me. They aren't really saying much except identifying a trend without explaining the cause or further explaining why democrats contribute to it. There is this gap of connection between your generalization and the specific actions of democrats that you are failing to account for and it ruins your attempt at making this poor false equivalence.