Based on how Obama grew up and the fact that his father was a Muslim who turned Atheist and his mother being an Anthropologist was also was a non-believer, Obama is kind of winking at you when he describes faith. His Grandparents were non practicing Christians. Also the fact that Obama could care less about picking a church to attend during his presidency and his comments to include Atheists, even in the inaugural address, add a bit more to the evidence that Obama is an atheist at heart.
In his second memoir, “The Audacity of Hope,” Obama added: “Although my father had been raised a Muslim, by the time he met my mother he was a confirmed atheist.”
Obama said: “I was not raised in a particularly religious household. I had a father who was born a Muslim but became an atheist, grandparents who were non-practicing Methodists and Baptists,.
“I had a father who was born a Muslim but became an atheist, grandparents who were non-practicing Methodists and Baptists, and a mother who was skeptical of organized religion,” Obama said.
The last Democratic man of true faith was Jimmy Carter.
What do Obama's parents have to do with it?
Madalyn Murray O'Hair was one of the most notorious atheists in America. Her son, William Murray, is a born-again Christian and a minister.
So, your reasoning doesn't wash.
As for the lack of picking a church thing, PLEASE!!!!! When my wife and I got married, we moved to a different town but didn't pick a steady church to attend for at least 2 months.