Yeah, because any worldview outside of our own, *especially* those that admit to anything that even smells like faith, can't possibly have any validity or worth, and should therefore be feared.

Or you could choose to accept that people come to different conclusions all the time, interpret identical data in different ways, and believe different things, and that those facts are nothing to be scared of. The only thing you should find... "scary" is your unwitting lack of tolerance for alternative viewpoints. You aren't the arbiter of reason, nor the enforcer of rationality, and it's nunnayafuckinbidnez what, how, why, and where people believe. The only thing you should give a damn about is how they act when it affects you.

Seriously, "scary?" Give me a fucking break.