The US parties may collude on a variety of things (like counterterrorism, or if you prefer, "counterterrorism") but they have significantly differing views on the relationship of the role of government to the citizenry and the economy. ...
Yes, and lions and hyenas are sworn enemies, but somehow that doesn't matter to you when you're alone on the savannah in the African night.
The fact is that the ideological differences between the two main parties have become increasingly superficial. The problem is that neither of them work for us anymore: they only work for their donors. That's by far the most corrosive influence on US politics these days: big money. Politicians running for Federal office know that they can't get elected without it. Did you know that 94% of the time the candidate running for the House of Representatives wins if they raise more money than their opponents? It's even 95% for the Senate. And Barack Obama, who was so good at raising all those small donations during the 2012 election cycle, still got 70% of his money from the big donors -- corporations and the super rich who give almost equally to both Republicans and Democrats -- the people who in the last three decades have become the de facto rulers of this country. There is so little disagreement between the two main parties on the really important issues (dragnet spying, military spending, Wall Street crime, taxes on the rich, the war on drugs, energy policy, etc.) because their masters want the same things from both of them. This is why, behind the scenes, the Republicans like to refer to Obama I and II as Bush III and IV. And Congress itself is now basically only a farming operation for K Street, where as lobbyists ex-members of Congress can expect to earn 15x as much as before.
There is only one solution to this problem: get big money out of politics.
This would be difficult in any other country with such a thoroughly corrupt political system, but lucky for us the United States Constitution includes Article Five, which describes an alternative process through which the Constitution can be altered: by holding a national convention at the request of the legislatures of at least two-thirds (34) of the country's 50 States. Any proposed amendments must then be ratified by at least three-quarters (38 States).
Is anybody doing this yet? Yes. WOLF-PAC was launched in October 2011 for the purpose of passing a 28th Amendment to the U.S. Constitution that will end corporate personhood* and publicly finance all elections**. Since then, many volunteers have approached their State Legislators about this idea and their efforts have often been met with unexpected bi-partisan enthusiasm. So far, 50 State Legislators have authored or co-sponsored resolutions to call for a Constitutional Convention to get money out of politics! Notable successes have been in Texas, Idaho and Kentucky.
However, if the State Legislators are also corrupt, why are they helping us? Well, maybe they aren't as corrupt as you think. And even if they are, the important thing is that they seem to be just as fed up with the Federal government as we are -- so much so that they seem quite happy to help out with this effort. After all, it's a pretty simple proposal that speaks to both Democrats and Republicans.
If you think this idea makes sense, you can sign this petition, donate, or even take action by personally contacting your favorite State Legislator and asking for a meeting. It's easier than you might think and as a result we might be able to change this awful situation sooner than you think.
*) The aim is not to end legal personhood for corporations, but natural personhood. The latter became a problem following the Citizens United v. Federal Election Commission ruling, which grated some of the rights of natural persons to corporations and makes it easier for them to lend financial support to political campaigns.
**) At the State level, more than half of all political campaigns are already publicly financed in some way, so there's nothing strange about doing the same for political campaigns for federal office.