The whole idea of an atheist community makes no sense at all. The idea that people whose only common belief is a shared god count of zero would all have the same politics is utter madness.
Just look at the people with a god count of one. They have nothing in common politically. Why should we have lots in common just because we have a god count of zero?
Atheism is a lack of beliefs which disqualify you from being an atheist. If you believe in a god or gods you are not an atheist. If you have no beliefs in gods you are an atheist. And that is so whether or not you like the term, use it, or belong to any group.
I am heartily fed up with leftists who are forever telling me its all the same struggle comrade. I am not your comrade. I am not your brother. Don't insult my parents like that! I do not want to be part of your struggle. I am opting out of it all. My instincts are not those of a socialist. I am rather antisocial. I resent it when anybody starts to assume I am in their club and want to follow their lead. I especially resent it when people tell me what I should believe.
Nothing gets up my nose more than right-on arseholes who think they can tell me what I should think and assume my support.
There is no default political line for an atheist to follow. Atheists cover the full spectrum of political beliefs from Nazi to Libertarian, from monarchist to anarcho-syndicalist and the vast majority whose politics are far more normal and difficult to define.
There is a nasty tendency within the self-styled progressive left who think that the enemy of atheists should be conservatism. This is absurd. If we have anything approaching a common enemy that must surely be theocracy. Of course there is a crossover between social conservatism and Christian theocracy in American and European politics but it does not follow that therefore atheists have to be standing up for everything that the conservatives oppose and allied with everybody who opposes the Christian Right.
I really cannot get my head around the alliance between the radical left wing socialists and Islamists. Your enemy's enemy is NOT your friend! How many times have we seen that demonstrated so clearly in this last century. Uncle Sam poured money and weapons into regimes or guerrilla bands led by appalling tyrants who just happened to share a common enemy at the time: Joseph Stalin, Mao Zedong, Ho Chi Minh, Saddam Hussein and Osama bin Ladin have all been the recipients of US military support because for a few years they represented a way for America's enemy of the day to be attacked without risking the lives of US voters or their sons. Now we see a similarly misguided alliance between the so-called progressive left and Islamists who want to impose second class citizenship for women, execute homosexuals, create apartheid statelets in British towns and eventually unite the whole world under a single religiously inspired despot. This is madness and you can count me out of it.
Racism is a bad thing, undeniably, but it is not so bad a thing that any alliance against it becomes a moral imperative that excuses its own evils. Islamists are not the world's best anti-racists, but they have learned that posing as anti-racists and anti-imperialists is the best way for them to receive the support from the ideologically screwed up self-loathing left. The Islamists do not support left wing causes, rather like the relationship between the USA and Israel it's a one-way alliance.
I don't want a theocratic state in my country. I don't want theocracy anywhere if I can have some influence on the matter. In my own country there is at least a chance of getting my own way. I don't want my country run according to unquestionable precepts made up by religious lunatics or charlatans centuries ago. I want my country run by people responsible and responsive to the needs of people alive today. I believe in freedom and democracy, not theocracy and absolutism. Somebody who believes in freedom and democracy is surely sensibly called a liberal, a democrat or a liberal democrat. But no, apparently being opposed to Islamism makes me a bigot, for some people being on the same side as those who would execute homosexuals and legalize arranged marriages with girls just past puberty to older men who are encouraged to beat them if they disobey or refuse to be raped is somehow progressive. If that's progress you can keep it.
Another aspect of this phenomenon is the idea that the best way to object to the Ground Zero Mosque is to build a great big gay bar next to it. Hello? Since when was sodomy the opposite of theocracy or lesbian the opposite of Muslim? There are far too many gay atheists within the activists and they are far too vocal considering the modest numbers of people who are actually gay. Being gay is not a membership requirement of the atheist community and there is no obligation on atheists to be pushing forward any gay rights agenda or to be interested in the issue at all. It's not all the same struggle ducky. I grasp the idea that many people lack enough jarring cognitive dissonance to push them over the line into fully acknowledged disbelief and so it is normal to expect a higher proportion of gays to come out as atheists, but that doesn't mean that most atheists are gay, surely, and it doesn't make it all the same struggle.