The hole in your position is created around a lack of relationship or desire to be with God instead of an intellectual pursuit of the best expression of God. Seek God and you will find him. To speak of God is endless.
That is what diferentiates the religions. Mormanism seeks to be god, hinduism seeks to appease god, islam seeks to please god, jws seek to earn their way, but true christians seek to love God.
Yes there are many flavors of christians leading many ways to camoflage the path. But the real question is what is your motivation? That is how you differentiate the path.
Examine your motivation, is it about you, or is it about Him?
I am a Christian, a serious one, I hope. I can’t claim any deep knowledge of other faiths, but Christianity seems true and good to me, and I was brought up by agnostics, albeit in a Christian culture. If I had been brought up in a different culture, it is quite possible that that faith would seem to be the true one to me.
The argument as it was presented was a bad one, and it is because I love my faith and hope that others will find salvation in it, that I don’t want it presented simplistically, and subject to simplistic refutation, and contempt.
As you say, if you go deeper, the question is “What is true? And what do you lose if you do not seek and follow that truth? What do you gain if you do?”