I can't see a problem with what Slapshot has written either although the definition of an infidel is interesting.
Definition of Infidel
1. Religion.
a. a person who does not accept a particular faith, esp. Christianity.
b. (in Christian use) an unbeliever, esp. a Muslim.
c. (in Muslim use) a person who does not accept the Islamic faith; kaffir.
2. a person who has no religious faith; unbeliever.
3. (loosely) a person who disbelieves or doubts a particular theory, belief, creed, etc.; skeptic.
–adjective
4. not accepting a particular faith, esp. Christianity or Islam; heathen.
5. without religious faith.
6. due to or manifesting unbelief: infidel ideas.
7. rejecting the Christian religion while accepting no other; not believing in the Bible or any Christian divine revelation.
8. Also, in⋅fi⋅del⋅ic /ˌɪnfɪˈdɛlɪk/ Show Spelled Pronunciation [in-fi-del-ik] Show IPA Pronunciation . of, pertaining to, or characteristic of unbelievers or infidels.
Basically, looking at this definition, it is not clear how anyone can be anything else than an infidel
Give me physics every time. Religion is too complicated