If what you are saying is true, then predominantly atheist countries (or societies) are mainly unethical and immoral (exaggeration).
Children of atheist parents will grow to be rapists psychos (also exaggeration).
That's maybe not what has been said here, but it's said pretty much in every discussion I've been. They argue that religion is necessary to "give" us a good moral compass, that without it we would be lost, etc.
Depends on what you consider religion, and morals, and I'd still argue it's not necessary. There are many philosophical sects that preach morality or reject the traditional compass that one can believe and internalize. Not all of these are traditionally recognized religions.
There is no need to treat religion and atheism as polar opposites. Atheism, at least in the west, has considerable overlap with Christian theology on topics like human rights. There is little rationality behind human rights, they can't be measured nor observed. Eg, who, when and how determined that humans have the right to life, but dolphins do not?
"Universal human rights" feels like a more modern wording for "God-given lifestyle". They are beneficial, but also as irrational as any religion before them, and rely on supernatural origin to make them them non-negotiable.