"All religions believe in God"(although the phrase: "belief...

"All religions believe in God"

(although the phrase: "belief system/collection" is more appropriate for what you are reffering to as religion)
no they don't
perhaps do a bit more research
and how can a religion belive in god? - that doesn't make sense.
we should be more careful about the words we choose.
we can become spellbound by them

some folks religious activity is watching sports
others is looking at porn
others is saving whales
my religion is: respect to others and myself - no name for it.
we are all religious - you don't have to choose from certain popular set of mainstream belief systems - discover or create your own that is right for you.
it doesn't have to involve any concept of some temperamental bearded dude in the sky.