Much more what?

"This is a factor that makes the book much more relatable to."

The evolution of this appalling phrase is evident (I can relate to the book, so the book is relatable to), so just for fun, let's apply that same process to some other verbs:

I can conceive of the concept, so the concept is conceivable of.

I can put up with the problem, so the problem is put-uppable with.

I can submit to the requirement, so the requirement is submittable to.

I'd rather not go on with this exercise, so this exercise is not go-onable with.