Your ideas of secularism and religiousness does not match anything in my personal experience whatsoever (I have friends of any different religions including many most haven’t heard of…I was raised in 1 major religion and followed 1 other major religion for a few years before turning to atheism and non-religousness almost 2 decades ago).

Of course it’s probably true for certain individuals, but you’re talking about religion and secularism (which isn’t the opposite of religion, btw, so I don’t even understand what it means to be raised “secular”, and in fact secularism is essential for a society with multiple religions) broadly, and you only need to see what’s happening in the world right now to observe that your generalization is almost certainly wrong.