Dawkins has a nostalgic fondness for the Church of England, for its cosiness. Humanist congregations are supposed to provide the social aspects of church without the faith. Being a nihilistic edgelord is not compulsory. I don't know what your "atheist church" was, but it sounds like you're rebounding from some unfortunate existential crisis club to the opposite extreme (being meaningfully wrong?), neglecting the possibility of just being reasonable.