Why not, if religion wasn't available, we'd wrest one major weapon away from warmongers. They will have to search much harder to galvanize large groups of people to fight for nonsense reasons over. If they didn't have this strong identity ready made on a platter to tap into, things become much harder.
Religion is simply not worth the baggage, it posits and requires faith in the infinitely wrong. Values can be taught without religion, you don't need to be a scientist to have values. Everyone has values including atheists. I see no reason why we can't simply teach values minus religion. I don't see atheists who believe in the American constitution as a good system have by virtue of atheism any less support for it, as an example. For the tiny amount of good you may find religions have provided, on the scale of balance the bloodshed and negativity it has caused are simple far worse and not worth it. And even if you think in terms of some values religions might impart, its also again counterproductive. Almost all religions are very karen and nosy often violently so about lgbtq, so much for the values side of the equation. If a religion might be good for values, such a religion at least hasn't yet emerged.