####But truly a purpose in existence cannot make sense without faith in God####
As someone who has much faith in God, I can still conceive of an individual who feels a purpose in existence without God. However, I doubt most people could, and worry deeply about the effects of secularism on our society. As a conservative I recognize that the other side understands this. The ACLU isn't involved in these battles (not just evolution, but the Boy Scouts, abortion, etc.) for nothing. They have societal ramifications.
Well of course you can conceive of such a person: you live in the modern age, do you not? And such individuals are legion. I imagine they are only such because they do not have a better alternative. But then, what do I know?