Of course, and that was the point.You said that if an atheist feared hell, they would become a christian. But Christianity isn't the only hell-fearing religion, so they could become muslim instead.
Christianity is Not a hell-fearing religion, but apostate Christendom is.
After the 1st-century ended began a mixing or a fusing of non-biblical teachings with Scripture.
That is why we are forewarned at Acts of the Apostles 20:29-30 to be aware of false clergy/ false shepherds.
They put the 'flames of fire' (pain) in biblical hell as a scare tactic to try to control the flock of God.
The Bible's hell is simply the stone-cold temporary grave for the sleeping dead.
That is why Jesus taught 'sleep in death ' at John 11:11-14 which is in harmony with Psalms 115:17; Psalms 146:4 and Ecclesiastes 9:5.
Dead Jesus went to biblical hell the day he died according to Acts of the Apostles 2:27; Psalms 16:10.
If biblical hell was a permanent place then Jesus would still be in biblical hell.
If one fears ' destruction ' then I suppose one could say Christianity is a destruction-fearing religion.
We are all given two (2) choices according to 2 Peter 3:9 to either ' repent ' or ' perish ' ( be destroyed ).
All the wicked will be ' destroyed forever ' according to Psalms 92:7. ( destroyed as in annihilated ).
So, if we don't want to be destroyed then we need to live by the Golden Rule and by Jesus' New commandment as found at John 13:34-35 to have the same self-sacrificing love for others as Jesus has.