Being skeptical ≠ not knowing
I know there is a lot I don’t know and can’t know. That’s honest and objectively true.
Ardent belief in a particular religion is a state where one conflates belief with certainty. It is a fallacious state of being. And it isn’t hard. It’s much easier to say “yes I have faith. Faith that the belief of my family / society / culture / religion is the RIGHT one. That there is eternal bliss beyond the difficult and scary and painful existence of a mortal human. And a belief the other religions and ways of life are the WRONG ones”. These ideas have been around in most human cultures (pre-Christianity) because they provide an easily-accessible way to cope with universal human difficulties. But it is fallacious and dishonest to conflate a belief with certainty.