Isn't this a kind of wonky version of Pascal's Wager?
Christianity
might be true so to be safe you feel compelled to just go with it?
That's not so much of a debating position as it is a guilt and scare tactic.
What if it is true but Jesus ends up liking people who don't follow scripture blindly?
What if Hell is actually a cool place and God just decided to drum up a really bad marketing campaign to compete with it?
Should one really live and believe based on what ifs?
What if I wake up tomorrow and I'm a giant bug?
What if I wake up tomorrow and I escape from the matrix?
Christianity and Secularism aren't the only options ever. There's a whole wide world out there.
If you can be persuaded to not believe in God just as easily as you can be persuaded to believe in a God, then your conviction is shakier than an earthquake.