I do believe in God and I do believe many thing about God that is inconsistent with organized religion. I believe in most cases organized religions do not know God well. They got God all wrong.
Having said this, I do respect the opinions of all atheists. I understand many of their frustrations come from those who falsely proclaim that they know God well. They are frustrated and naturally do not trust these religious view. Religions preach of an ugly God, full of vengeance, anger, and jealously. They also preach that we should fear this God who will condemn you to eternal damnation if you don't accept him. This is something even atheists will not wish for anyone else. In fact it is quite natural to turn away from such a God if that is the case.
Every atheist will come to know the truth about the wonderful our God in his or her own way. This can even happen after death.
There are infinite paths to God.
Once in the presence of God which is full of Love and Joy, the Grand truth will be obvious. Do not condemn them for their path and views, for God has a wonderful plan for everybody.