@BillRM,
There's just as much evidence for belief as there is for unbelief. i.e. zero.
There is also the difficulty of separating belief and unbelief from acting as if. There are lots of social reasons for acting as if.
The real question is the social effects of belief and unbelief. Many people think, rightly or wrongly, that universal unbelief will lead to a breakdown of the social order, anarchy and dissolution. To them unbelief is insane for that reason. Belief has been tested over many centuries and has contributed to us getting where we are. On that view, unbelief is a bull in a china shop.
Those with belief find it very difficult to credit the fantastic complexity of the world, an unimaginable complexity actually, and even the complexity of their own bodies, to a meaningless accident using what they see as common sense.
That's the position of 85% of Americans I gather. And I think the figure would increase if something other than casual answers were given to questions on the matter. An atheist scientist is an oxymoron. And so is a believing scientist. But I will agree that that is taking a very severe definition of scientist. And the danger in not taking a severe definition has the difficulty of where to draw the line. The same applies to art.
Only an agnostic scientist makes sense. And such a person would stay out of the argument except insofar as calculating the effects of belief and disbelief. On himself, on his career and on his society. I think from my reading that those who give priority to their society over that of personal interest are supportive of belief.