To me, there is a common set of social principles that exist outside of religion, yet religious organizations like to claim ownership of these principles, and have having staked those claims, find it completely within their ethical code to apply these principles exclusively to members of their own faith.
In other words, pretty much every religious person I’ve ever met claim it unethical to lie and cheat, except when interacting with anyone outside their exclusive sect. In general I don’t broadcast my lack of religion, I don’t pretend to be religious.