It’s just a comment designed to devalue the worth of somebody’s faith. “I’m better and stronger than you because i believe in nothing and yet i still find the will to live”. The assumption of course is that value-statements still mean something without God, that such a statement, especially the words stronger and better, has real meaning and value regardless of God and that we should think this is true; as if a life without God is objectively a real life worth living and fighting for and if only you were strong enough you wouldn’t need God. But don’t be fooled, it’s only an illusion and a fantasy that something of true objective value, meaning, and worth can exist without God and that value statements about ourselves and how we ought to be would still have a truth-value if God didn’t exist.
I’d argue that you need a lot of strength to follow God. Christianity is not a very flattering faith. Even more strength to have faith in a time where it is so easy to doubt.
In any case, don’t we all have a crutch of some kind, something that makes life an easier concept to swallow, a thing worth enduring and living. I mean it’s not as if religion makes life easy, it just makes it worth it for some of us. We still have to be strong regardless.
We all have a God of some kind regardless of what form it takes, and atheists are not exempt from this fact.