Atheists, tell me, a Roman Catholic: why should I become an atheist?

[chimp3]

Don't worry, I'm going to stick around at least until I feel like I've made a genuine conclusion about the existence of God.

Currently I've been looking a little more into why Christians believe in God (I've seen some ideas about how God could be a manifestation of our own ego, for example) to gain some perspective before I look into the ontological/teleological/etc. arguments.

When you do look into ontological \ teleological arguments take a moment to consider how they could also be a manifestation of our own ego.