Normally people date people because of attraction.......not belief systems.
That said everyone has their own preferences (some like same religion or are partial to physical attributes).
..... And just because a person professses 'Pagan, JW, RCC, Baptist, Methodist, Jew, Hindu, Muslim, Buddhist, Xian, Fundy Xian, Atheist, Agnositic' today don't mean they will be one 10 years from now.... in contrast the person professing is still the same person not professing.
ooooooh
Do they have 'pagan' dating sites?.....googling..... YEP they do !