I know people don't want to hear this but it's the truth.
Thinking you'll live in a happy, liberal, secular paradise long-term is both naive and delusional.
But as a national 'religion' it's a recipe for failure imho. People who DO believe in something will simply wipe you out and out-breed you.
Religion is part of natural selection.
Simply an observation and a prediction from somebody who tries to see the world objectively and honestly.
The correlation with loss of religion and belief in God is not accidental.