'Since skeptics, or perhaps everyone, allegedly uses presuppositions, this supposedly justifies presuppositional apologetics (i.e.)
YOU. However, this is fallacious because the "presuppositions of non-believers or skeptics" are not relevant to the question of the existence of God. This is a
tu quoque argument.
It is also a
straw man argument since some skeptics allow the
possibility of their mind being changed by evidence. Arguably, many skeptics "presuppose"
skepticism and avoidance of dogmatism. These beliefs can themselves be subjected to skeptical examination. However, skepticism does not preclude belief in God.
It is also false to draw an analogy between skeptical presuppositions and religious presuppositions. Scepticism attempts to minimize assumptions while presuppositionalist believers assume quite a bit! This analogy is similar to the claim that
religion is another way of knowing (i.e.) all belief systems are equally valid. An example of a faulty analogy:
"Arguments for religions and philosophical systems are arguments for world views
. A world view is a general account of all reality, an understanding of the most basic features of the universe. All arguments for the truth of world views (whether religious, philosophical, political, scientific or whatever) must presuppose standards of rationality consistent with those world views. All such arguments, therefore, are circular in a way similar to ours. [12]"
If this conclusion was true, it would only imply that any such "world view" cannot be logically justified and
not that presuppositional apologetics is justified. It is possible to live and provisionally believe things without any grand "world view", such as with
existentialism or living without any knowledge of philosophy (
naive realism).'