Have you ever heard an atheist claim that Christianity was invented by people who want to escape the harsh reality of life's end?
Atheists think that makes sense.
Well, about as much sense as saying that atheists have made up their world-view because they want to escape the reality of judgement, which for them will include an eternity spent in the utter absence of God.
At least Christians have physical, scientific evidence supporting their world-view; something atheists will never have.
Regardless, Christians have never been promised, nor do we expect to be spared from the harsh realities of life. Jesus showed by example that we can experience a full and abundant life even as we step right into the midst of suffering, pain and loss.
What we have been promised and what we do receive is God's presence with us in and through suffering, pain and loss. Therefore we sedulously keep our eyes on the prize and enjoy the fact that we can lie down and sleep in peace, because God alone provides for our safety.