I don't believe that all go to heaven so,"No", but why would you ask? You don't believe in a hell or a heaven, and you are only 1/2 right. There is no burning hell, that's a pagan belief that came from Satan right along with a immortal soul. You being an Atheist don't believe that crap, I being a Christian don't believe that crap, but for different reason, I unlike you know the truth and the truth has set me free from false Bible doctrines the same false doctrines that most likely cause you not to believe in the Bible and think there is no God. Before you shut the door on God you should of check out if what you were being told was of pagan origin or was Bible backed.
All of these beliefs started in Babylon fifteen hundred years before Christ and is the reason that in the Bible book of Revelation it describes false religion as a Harlot called "Babylon The Great".
Tau, sun god, symbol the cross, festival on the 25th of Dec
Easter, Queen of the Heavens, goddess of fertility, hot cros bunns, dyed eggs, symbol the rabit.
Only One. a three person god and the start of the Trinity.
There are more, most of the holidays are steep in paganism and their rites and festivals.
Maybe if you knew that the churches of today are full of paganism and not based on what the Bible really teaches, you might not be so abpt to reject the true God(Psalms 83:18)