That's a strawman argument, Bouke. No one here is even arguing that Genesis is "just a story" to provide "comfort", let alone the gospels. Stories can have deep and profound meanings and lessons without necessarily being historical. I don't know about you, but I don't simply wave off the narratives my pastor tells me on Sunday mornings just because they might not have happened exactly as told. There's value to the message beyond the medium in which it is delivered.
Besides, Paul already addressed the slippery slope you fear in 1 Cor 15:17.
I agree that it is possible to be a TE and make the Rom. 10 confession of faith, taking the resurrection literally.
However, there is most assuredly something to the alleged strawman argument. Peter makes the argument. Peter says, since people believe that the past is a uniform tableu, there is no reason to think the future will be different from the past.
2Pe 3:4 and saying, "Where is the promise of His coming? For since the fathers fell asleep, all things continue as they were from the beginning of creation."
The depth of meaning argument, I kind of understand. There are times when spiritualizing the truth of the Bible can have as deep an impact or more than literalism. It can, but for the most part, it doesnt. If Jesus comes back tomorrow, his literal re-arrival has "deeper meaning" than any spiritualized, metaphorical sense of His return.
Isa 61:2 To proclaim the acceptable year of the LORD, And the day of vengeance of our God; To comfort all who mourn,
Isa 61:3 To console those who mourn in Zion, To give them beauty for ashes, The oil of joy for mourning, The garment of praise for the spirit of heaviness; That they may be called trees of righteousness, The planting of the LORD, that He may be glorified."
In the Old Testament, a world-wide flood is "deeper" in meaning than a local flood. An existence without death prior to the fall is a deeper meaning than lots of death, but just better thinking, prior to the fall. Etc.