Brisker: For them, it’s just being a nice person, and they will jump to do chesed with goyim, toeva-people, and anyone else – even animals.
Me: The torah requires chasing the mother bird away and kindness to animals too. And there is nothing wrong with doing something to be nice. Indeed, R’ Yisroel Salanter’s mussar movement may not have taken a larger hold in the charedi community, but that is unfortunate.
And taking Rashi to his logical end, you should not return something lost EVER to a jew who has given up hope, because the torah no longer requires it. (To be clear, I do not believe Rashi said this, but if the reason is as has been attributed to him, then it would apply just the same to a jew who has given up hope)
needless, to say, others disagree.