fear of spiders

They're right handed.

Hair color

Their tonsils.

A missing sock.

Freckles?

Eye color.

Love animals.

The requirement to pay taxes.

They hold religious beliefs of one form or another.

Thoughts against religions is still a belief about religion. I'd say that one is 100%?

But what do I know!

To me, having a negative view or no view of religion isn't itself a religious belief. Also, I think how people answer a poll question like this, or how outsiders interpret a local population, can differ significantly from what the reality is. Most Europeans (what, 80% or more) would say they're Christians to distinguish themselves from being Muslims, or Jews, or Buddhists, or whatever. But, if you enter a church at mass time or service time on a Sunday, you'll get the best seat in the house. What people say and what they do can differ. The answer to this question may be that a particular source totals religious views as being 9 out of 10 but I think that greatly overstates the truth.

But what do I know?

Neanderthal in our DNA....

Bad breath....

blood type