I'm a Liberation Theologist (a Christian Marxist, if you will), whose friends, colleagues, and family exist along a spectrum from conservative religious to atheist.
I understand the hostility that many have to organized and institutionalized religion, but I would ask you to remember that while much evil has been done in the name of God, much good has been done as well.
For every racist who spews hate and intolerance, there is a Martin Luther King, Jr.
For every fundamentalist who refuses to see our common humanity, there is an El-Hajj Malik El-Shabazz.
For every conservative who blames the poor for their plight, there is an Oscar Romero.
For every coward who fails to stand up or speak up when others are being oppressed, there is a Dietrich Bonhoeffer.
For every elite who uses religion as a tool to make people into enemies, there are others whose purpose is to help us recognize each other as "Friends".
I know there's a lot of crazy and ignorant stuff happening these days, much of it caused by religion, but I would ask my atheist and agnostic brothers and sisters to try and be more tolerant of spiritual folk. Critique them for what they say and do that harms others, but don't attack them for personal beliefs which simply help them make some sense of the world. You can call it opium, but frankly, we all need drugs to get through this. :-D