Why are all atheists liberals?

[Cephus]

From what I've read there a lot of them hate capitalism and want to dissolve it or drastically change it - That's not very liberal, liberals may be supportive of welfare but they don't defend abolishing capitalism - I'd say they are socialist or socialistic oriented - And no, it's not the same as being liberal, it's a drastic different position altogether - Check the above post as well. BTW, good to have more conservative atheists on board

They self-identify as liberal, it doesn't really matter whether you agree or not, that's what they're putting forward. There are plenty of out-and-out socialists who self-identify as liberals, just like there are plenty of out-and-out anarchists who self-identify as libertarians.