What do you mean condemn?
If the Christians 'believe in Hell, and think people are in danger of ending up there in the afterlife, depending on who they are in life.
Then I suppose it could make sense for Christians to warn people they might end up in Hell (From certain Christian perspectives).
Or point people out as examples of behaviors that land one in Hell, or endanger others to Hell.
'Ideally, for Hell believers, I suppose the motivation is trying to protect and save people.
Less ideally, it'd be sneering down at others.
. . .
I'm not well read on the Bible,
But I'm an Atheist anyway, I'd rather take away Hell as a metaphor.
People who live in selfish, cruel ways, often end up alone and in pain on Earth, never mind the afterlife.
Those who bully are often isolated and alone, if not bullied themselves in turn, should they 'lose power.
Lot of selfish behavior ends up self harmful,
Lot of behavior becomes difficult to 'break, the longer and deeper one digs the groove of that behavior.
End up with self destructive lifestyles, estranged from any friends or family.
Hard to change, and then one feels 'stuck in a Hell.